My Inquiry
My Account
Infineon Technologies CY22393FXAT
- Part No.:
- CY22393FXAT
- Manufacturer:
- Infineon Technologies
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
CY22393FXAT.pdf
- Description:
- IC CLOCK GENERATOR 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,777
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
CY22393FXAT from Cypress Semiconductor is an AEC-Q100 qualified automotive-grade three-PLL serial- and flash-programmable clock generator in 16-pin TSSOP. It delivers up to four independent output frequencies (CLKA–CLKD, CLKE) with ultra-wide programmability: 8-bit Q, 11-bit P, and 7-bit post-dividers per PLL; supports crystal load capacitance tuning from 6 pF to 30 pF in 0.375 pF steps; operates at 3.3 V; and enables glitch-free frequency switching via S0/S1/S2 control inputs for infotainment and ADAS domain controllers.
For engineers reviewing the CY22393FXAT datasheet, CY22393FXAT pinout, CY22393FXAT application, or CY22393FXAT equivalent, key selection criteria include its triple-PLL architecture, field-programmable flash memory, digital VCXO capability via crystal load tuning, AEC-Q100 Automotive-A/E grade qualification, and support for dynamic in-system reconfiguration via two-wire serial interface.
Technical Context
The CY22393FXAT integrates three fully independent PLLs-each with 8-bit Q and 11-bit P dividers-feeding a 4×4 crosspoint switch that routes reference, PLL1, PLL2, or PLL3 to four 7-bit post-divided outputs (CLKA–CLKD) plus a dedicated /2-/3-/4-divided CLKE output from PLL1. The XBUF pin provides buffered reference clock output.
It features configurable crystal drive strength, on-die linear crystal load capacitors (6–30 pF, 0.375 pF step), digital VCXO functionality via serial register writes, and power management including SHUTDOWN/OE (full chip disable) and S2/SUSPEND (selective PLL/output disable). All PLLs and outputs are individually controllable via two-wire serial interface.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| PLL count | Three independent PLLs enabling concurrent generation of up to four distinct output frequencies |
| Reference input | Crystal or external clock (up to 166 MHz when XTALOUT floated); supports fundamental-mode parallel-resonant crystals |
| Output count & type | Six configurable outputs: CLKA–CLKD (7-bit post-divided), CLKE (/2-/3-/4 from PLL1), XBUF (buffered reference) |
| Crystal load range | 6 pF to 30 pF in 0.375 pF increments via OscCap[5:0] register-enables precise pullability ±150 ppm for Cypress-specified crystals |
| Supply voltage | 3.3 V ±10%; no power sequencing required; AVDD and VDD independently decoupled |
| Automotive grade | AEC-Q100 qualified; available in Automotive-A (−40°C to +105°C) and Automotive-E (−40°C to +125°C) temperature grades |
| Interface | Two-wire serial (SDAT/SCLK); supports in-system programming, dynamic updates, and random/sequential register access |
Pinout & Package
Package: 16-pin Thin Shrink Small Outline Package (TSSOP), RoHS-compliant, 4.4 mm × 5.0 mm body, 0.65 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CLKC (Pin 1) | Configurable clock output C | Routed from crosspoint switch; driven by 7-bit post-divider; supports single-point 15 pF load |
| VDD (Pin 2) | Digital power supply | 3.3 V supply for logic and serial interface; requires local 0.1 µF decoupling |
| AGND (Pin 3) | Analog ground | Reference ground for crystal oscillator and PLL analog blocks; must be connected to common ground plane |
| XTALIN (Pin 4) | Cry stal/reference input | Accepts fundamental-mode crystal (1–54 MHz) or external clock (up to 166 MHz with XTALOUT floating) |
| XTALOUT (Pin 5) | Cry stal feedback output | Drives crystal in parallel-resonant configuration; bypassed for driven clock inputs |
| XBUF (Pin 6) | Buffered reference output | Provides clean, low-jitter copy of XTALIN signal; usable as system reference or debug probe |
| CLKD (Pin 7) | Configurable clock output D | Routed from crosspoint switch; driven by 7-bit post-divider; independent of CLKA/CLKB register selection |
| CLKE (Pin 8) | Dedicated PLL1-derived output | Fixed /2, /3, or /4 division of PLL1 output-no 7-bit divider; used for high-stability timing paths |
| CLKB (Pin 9) | Configurable clock output B | Routed from crosspoint switch; 7-bit post-divider with dual-register selection (S0/S1/S2 controlled) |
| CLKA (Pin 10) | Configurable clock output A | Routed from crosspoint switch; 7-bit post-divider with dual-register selection (S0/S1/S2 controlled); shares register set with CLKB |
| GND (Pin 11) | Digital ground | Return path for digital I/O and serial interface; tied to same ground plane as AGND |
| SDAT (Pin 12) | Serial data I/O | Two-wire interface data line; latched at startup as S0 for frequency table indexing |
| SCLK (Pin 13) | Serial clock input | Two-wire interface clock; latched at startup as S1 for frequency table indexing |
| AVDD (Pin 14) | Analog power supply | 3.3 V supply for crystal oscillator and PLL charge pumps; separate from VDD for noise isolation |
| S2/SUSPEND (Pin 15) | Frequency select / suspend control | Latched at startup as S2; selects between two frequency sets; also enables selective PLL/output shutdown when asserted LOW |
| SHUTDOWN/OE (Pin 16) | Global enable/shutdown | Tristates all outputs when LOW; optionally disables entire chip (PLLs, oscillator, logic) depending on configuration |
Key Features
| Feature | Design Value |
|---|---|
| Flash-programmable configuration memory | Persistent storage of PLL, divider, and capacitor settings-enables one-time factory programming or field updates without external EEPROM |
| Digital VCXO via OscCap tuning | Real-time crystal load capacitance adjustment (6–30 pF) enables ±150 ppm frequency pulling for synchronization or jitter reduction |
| Glitch-free multi-frequency switching | S0/S1/S2 inputs select among eight preloaded P/Q/divider combinations with guaranteed asynchronous edge alignment-no output glitches during transition |
| Configurable crystal drive strength | OscDrv[1:0] register controls inverter gain to match ESR and CL of diverse crystal manufacturers-improves start-up reliability and aging stability |
| Selective power gating | S2/SUSPEND and serial interface allow individual PLL or output disable-reducing dynamic current by >80% in partial-suspend modes |
Applications
| Automotive Infotainment SoC Clocking | ADAS Domain Controller Timing |
|---|---|
|
Use Scenario: Synchronizing multiple processors, GPUs, and video interfaces (MIPI DSI, LVDS) in head-unit systems requiring stable, low-jitter clocks across varying thermal conditions. IC Role / Device Role / Timing Role: Primary clock generator providing independent 100 MHz (GPU), 166 MHz (SoC core), 27 MHz (HDMI PHY), and 48 MHz (USB) outputs from single crystal reference. Use Value: Eliminates need for four discrete oscillators; AEC-Q100 qualification ensures operation over −40°C to +105°C; flash programming enables OEM-specific frequency tables. |
Use Scenario: Providing deterministic clock domains for radar preprocessing units, camera ISPs, and safety MCU clusters where phase alignment and jitter <1 ps RMS matter. IC Role / Device Role / Timing Role: Central timing hub delivering synchronized 125 MHz (Radar DSP), 200 MHz (Camera ISP), 80 MHz (Safety MCU), and 10 MHz (CAN FD transceiver reference) with sub-100 fs jitter contribution. Use Value: Digital VCXO tuning compensates for crystal aging drift; triple-PLL isolation prevents crosstalk between safety-critical and non-safety domains. |
| Automotive Gateway ECU Clock Synthesis | Telematics Control Unit (TCU) Timing |
|
Use Scenario: Consolidating clock sources for Ethernet AVB, CAN FD, LIN, and cellular modem subsystems within a single gateway module subject to stringent EMC and thermal constraints. IC Role / Device Role / Timing Role: Generates 125 MHz (Ethernet PHY), 40 MHz (CAN FD controller), 19.2 MHz (LIN transceiver), and 19.2 MHz (cellular baseband) from 25 MHz crystal using independent PLL paths. Use Value: Two-wire serial interface allows runtime reconfiguration during OTA updates; S2/SUSPEND pin enables low-power sleep mode with selective PLL retention. |
Use Scenario: Supporting dual-modem operation (LTE + GNSS) with tight phase-noise requirements for GPS/Galileo signal acquisition in harsh vehicle RF environments. IC Role / Device Role / Timing Role: Supplies 32.768 kHz (RTC backup), 26 MHz (LTE RF), 15.36 MHz (GNSS RF), and 100 MHz (application processor) with <0.5 ps RMS integrated jitter (12 kHz–20 MHz). Use Value: On-die linear load capacitors minimize frequency shift vs. temperature/voltage; AEC-Q100 Automotive-E grade supports under-hood mounting near power electronics. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multi-PLL programmable clock generator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Si5341-B-GM | Four-output, multi-core DCO-based clock generator with JESD204B support; higher integration but no flash memory-requires external EEPROM for configuration | Targeted at high-speed serial interface timing (JESD204B, PCIe); lacks AEC-Q100 qualification and automotive temp grade options | Choose for JESD204B-compliant data converters; avoid for automotive safety-critical timing due to qualification gap |
| ICS853S01I | Triple-PLL clock generator with fixed 3.3 V supply; no flash memory, no crystal load tuning, no digital VCXO; only serial EEPROM-based configuration | Designed for industrial computing; rated only to +85°C; no automotive qualification or suspend/shutdown flexibility | Choose for cost-sensitive non-automotive designs needing basic triple-PLL synthesis; avoid where AEC-Q100 or field programmability is required |
Compared with Si5341-B-GM and ICS853S01I, the CY22393FXAT uniquely combines flash-programmability, AEC-Q100 qualification, digital VCXO capability, and selective suspend-making it the only option qualified for functional-safety-relevant automotive timing nodes requiring persistent, field-updatable configuration.
Availability
CY22393FXAT is available at Aetrix Electronics and suitable for automotive infotainment systems, ADAS domain controllers, and telematics control units requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for CY22393FXAT includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Cypress Semiconductor (now part of Infineon Technologies) designs high-performance mixed-signal ICs for automotive, industrial, and IoT applications, with emphasis on reliability, integration, and programmability.
The CY22393FXAT belongs to Cypress's automotive clock generator product line, engineered specifically to replace multiple discrete oscillators and simplify timing architecture in safety-conscious vehicle ECUs while supporting field updates and thermal resilience.
FAQ
What is the maximum input frequency supported on XTALIN when using an external clock instead of a crystal?
When XTALOUT is left floating, the CY22393FXAT accepts externally driven clock signals up to 166 MHz on XTALIN. This mode bypasses the internal crystal oscillator circuitry and uses the input directly as the reference source. No internal amplification or buffering is applied beyond the input Schmitt trigger, so signal integrity and slew rate must meet datasheet specifications for reliable locking.
How does the digital VCXO function affect all output frequencies simultaneously?
Adjusting the crystal load capacitance via OscCap[5:0] changes the reference oscillator frequency, which serves as the input to all three PLLs. Since each PLL's output is derived as (Fref / Q) × P, any shift in Fref proportionally shifts all PLL outputs-including CLKA–CLKD and CLKE-by the same ppm amount. This enables system-wide frequency calibration without reprogramming PLL dividers.
Can CLKA and CLKB operate at different frequencies using the S0/S1/S2 control scheme?
No-CLKA and CLKB share the same dual-register 7-bit divider configuration and must both use either Register 0 or Register 1. The S0/S1/S2 inputs select one of eight global frequency states, each defining a unique combination of PLL1 P/Q values and the active divider register for CLKA/CLKB. Independent frequency control for CLKA and CLKB is not supported.
Is CyClocksRT software required to program the CY22393FXAT in production?
No-CyClocksRT is a development and validation tool. Production programming can be performed using standard I²C-compatible programmers or in-system via the two-wire serial interface using host MCU firmware. The device supports sequential byte writes, random register access, and full memory dump reads-enabling integration into automated test and programming workflows without proprietary tools.
CY22393FXAT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Infineon Technologies
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Type:
- Clock Generator, Fanout Distribution
- PLL:
- Yes with Bypass
- Input:
- LVTTL, Crystal
- Output:
- CMOS
- Number of Circuits:
- 1
- Ratio - Input:Output:
- 1:6
- Differential - Input:Output:
- No/No
- Frequency - Max:
- 166MHz
- Divider/Multiplier:
- Yes/No
- Voltage - Supply:
- 3.135V ~ 3.465V
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Surface Mount
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Supplier Device Package:
- 16-TSSOP
CY22393FXAT FAQ
1.How can I place an order for CY22393FXAT through Aetrix?
Please submit a Request for Quotation (RFQ) for CY22393FXAT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for CY22393FXAT reliable?
The price and inventory of CY22393FXAT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for CY22393FXAT is usually 5 days.
3.What payment methods are accepted for CY22393FXAT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for CY22393FXAT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for CY22393FXAT?
CY22393FXAT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your CY22393FXAT order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for CY22393FXAT?
For technical support, including CY22393FXAT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your CY22393FXAT requirements.
6.How does Aetrix verify that CY22393FXAT is sourced from the original manufacturer or authorized distributors?
All CY22393FXAT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that CY22393FXAT meets industry standards.
7.What is the process for return or replacement of CY22393FXAT?
All CY22393FXAT units undergo pre-shipment inspection (PSI). If there is an issue with CY22393FXAT, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The CY22393FXAT part is unused and in its original packaging.
Return procedure for CY22393FXAT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
CY22393FXAT Tags
-
CD74HCT4046AM96
Texas Instruments
-
MC14046BDWR2G
onsemi
-
501MILFT
Renesas Electronics Corporation
-
CD74HC7046AM
Texas Instruments
-
CDCVF2505PWR
Texas Instruments
-
RC19004A100GNL#KB0
Renesas Electronics Corporation
-
SI5351A-B-GTR
Skyworks Solutions Inc.
-
CY2305SXI-1T
Infineon Technologies
-
570BILFT
Renesas Electronics Corporation
-
CDCE913PWR
Texas Instruments
-
CY2305SXI-1HT
Infineon Technologies
-
DS1086LU+T
Analog Devices Inc./Maxim Integrated
Tech Hub
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
LDO regulator guide covering low dropout voltage, power dissipation, thermal design, PSRR, output noise, capacitor stability, adjustable LDO circuits, LDO vs buck converter and datasheet selection chec…
Conditional Access Module guide covering CAM meaning, CI/CI+ interface, smart card authorization, DVB security workflow, TV and set-top box compatibility, internal electronics, ESD protection, connecto…
Guide to electronic component obsolescence covering EOL risk, PCN/PDN notices, last-time buy planning, replacement options, form-fit-function validation, counterfeit risk and BOM lifecycle management.
18650 battery guide covering lithium-ion cell basics, 3.6V/3.7V voltage, 4.2V charging, mAh and Wh capacity, protected cells, chargers, BMS, series-parallel packs, holders, welding and sourcing checks.…
Hall effect sensor guide covering working principle, linear and digital sensors, Arduino circuits, current sensing, speed detection, automotive applications, A3144 examples, signal filtering and datash…
Product Change Notification guide for electronic components, covering PCN meaning, PCN vs PDN/EOL, common change types, risk levels, form-fit-function review, engineering validation, BOM control, LTB/L…
A practical guide to blend door actuators, covering HVAC function, symptoms, location, AC and heater issues, reset and calibration, replacement cost, electrical diagnosis, compatibility checks, and rep…
