My Inquiry
My Account
Analog Devices Inc. AD809BRZ-REEL7
- Part No.:
- AD809BRZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD809BRZ-REEL7.pdf
- Description:
- IC CLK/FREQ SYNTH 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,937
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AD809BRZ-REEL7 from Analog Devices is a 155.52 MHz frequency synthesizer IC that generates ECL/PECL-compatible clock outputs from 19.44 MHz or 9.72 MHz reference inputs. It integrates a low-jitter VCO, phase-frequency detector, loop filter, and input multiplexer in a single 16-pin SOIC package, delivering 2.0° RMS output jitter at 90 mW power consumption for SONET/SDH bit-clock generation.
For engineers reviewing the AD809BRZ-REEL7 datasheet, AD809BRZ-REEL7 pinout, AD809BRZ-REEL7 application, or AD809BRZ-REEL7 equivalent, key selection criteria include ×8/×16 synthesis ratio support, PECL/TTL/CMOS input compatibility, 155.52 MHz output stability over –40°C to +85°C, and on-chip loop damping capacitor terminals (CF1/CF2) for configurable PLL dynamics.
Technical Context
The AD809BRZ-REEL7 implements a second-order charge-pump PLL with auto-selecting ×8 or ×16 integer-N frequency multiplication. Its PFD drives an integrated VCO locked to either 19.44 MHz (×8) or 9.72 MHz (×16) references, with loop dynamics adjustable via external CF1/CF2 capacitors determining damping factor ζ.
It features dual-input architecture: TTL/CMOS single-ended input on Pin 10 and differential PECL inputs on Pins 12/13, selected by TTL-level MUX control (Pin 15). Output is differential 155.52 MHz PECL on Pins 4/5, with phase skew of –700 ps (CLKOUTN relative to TTL/CMOSIN) at +27°C and stable tracking across ±20 kHz capture range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Synthesis Frequency | 155.52 MHz output - exact SONET OC-3/STM-1 line rate, no external dividers required |
| Input Reference Options | 19.44 MHz (×8) or 9.72 MHz (×16) - supports both primary SONET/SDH timing standards |
| Output Jitter | 2.0° RMS typical - meets SONET GR-1244-CORE jitter compliance for transmit clocking |
| Power Consumption | 90 mW at +5 V - enables dense clock distribution without thermal derating in telecom line cards |
| Supply Voltage | +5 V or –5.2 V single supply - simplifies power design versus dual-rail alternatives |
| Operating Temperature | –40°C to +85°C - qualified for industrial and outdoor telecom infrastructure environments |
| Output Compatibility | 10 kHz ECL/PECL - directly interfaces with SONET framer and serializer ICs without level-shifting |
Pinout & Package
AD809BRZ-REEL7 is housed in a 16-pin narrow-body SOIC (R-16A) package, 150 mil width, with θJA = 110°C/W. Pin 1 identifier notch is located at top-left per JEDEC MS-012.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Pin 1 (PECLINN) | Differential PECL reference input (negative) | Accepts 155.52 MHz PECL signal when used in loop-timed recovery mode |
| Pin 2 (PECLIN) | Differential PECL reference input (positive) | Paired with Pin 1 for high-noise-margin reference injection into PLL |
| Pin 4 (CLKOUTN) | Differential PECL clock output (negative) | 155.52 MHz output complementary to Pin 5; phase-skewed –700 ps relative to TTL input |
| Pin 5 (CLKOUT) | Differential PECL clock output (positive) | Main 155.52 MHz output; matches SONET framer input requirements without AC coupling |
| Pin 10 (TTL/CMOSIN) | Single-ended TTL/CMOS reference input | Primary reference path for 19.44/9.72 MHz; internal mux selects this when Pins 12/13 are tied to AVEE |
| Pin 12/13 (CLKINN/CLKIN) | Differential PECL reference input pair | Alternative reference path; active when MUX pin selects PECL mode (TTL logic high) |
| Pin 15 (MUX) | Reference input selection control | TTL-level input: logic "0" selects Pin 10; logic "1" selects Pins 12/13 - enables flexible backplane timing architectures |
| Pin 7/8 (CF1/CF2) | Loop filter damping capacitor terminals | Connect external ceramic capacitor (e.g., 22 nF for ζ = 10) to set PLL bandwidth and jitter transfer peaking |
Key Features
| Feature | Design Value |
|---|---|
| Auto-select ×8/×16 synthesis | Eliminates manual configuration; device locks automatically to 19.44 MHz (×8) or 9.72 MHz (×16) input without external programming |
| Integrated low-jitter VCO | On-die VCO achieves 2.0° RMS jitter at 155.52 MHz - avoids external VCO layout complexity and noise coupling |
| Dual-reference input mux | Hardware-selectable TTL/CMOS (Pin 10) or differential PECL (Pins 12/13) inputs - supports both distributed and recovered timing architectures |
| No external loop components | Only CF1/CF2 capacitor required for full PLL operation - reduces BOM count and board area vs. discrete filter designs |
| Single-supply operation | Operates from +5 V or –5.2 V - compatible with legacy telecom power rails and eliminates need for dual supplies |
Applications
| SONET OC-3 Line Card | Fiber-in-the-Loop Terminal |
|---|---|
|
Use Scenario: Generating transmit bit clock for OC-3 (155.52 Mbps) framer ASIC in central office line card. IC Role / Device Role / Timing Role: Primary frequency synthesizer providing low-jitter 155.52 MHz clock to serializer and multiplexer stages. Use Value: Meets GR-1244-CORE jitter mask with 2.0° RMS output, enabling error-free transmission over 40 km fiber spans. |
Use Scenario: Clock recovery and regeneration in passive optical network (PON) OLT equipment. IC Role / Device Role / Timing Role: Converts recovered 19.44 MHz reference from upstream data into clean 155.52 MHz transmit clock. Use Value: Auto-select ×8 synthesis ensures lock acquisition without firmware intervention during link initialization. |
| SDH STM-1 Backplane | Telecom Timing Module |
|
Use Scenario: Distributing synchronized 155.52 MHz timing across multi-slot SDH shelf via backplane. IC Role / Device Role / Timing Role: Local clock synthesizer receiving 9.72 MHz backplane reference and multiplying to line rate. Use Value: ×16 synthesis mode supports low-frequency backplane distribution, reducing crosstalk and EMI. |
Use Scenario: Standalone timing module for legacy telecom equipment requiring drop-in 155.52 MHz clock source. IC Role / Device Role / Timing Role: Self-contained clock generator with on-chip VCO and configurable loop filtering. Use Value: 16-pin SOIC footprint and single +5 V supply enable direct replacement of aging oscillator modules. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar frequency synthesizer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LMX2531LQ1770E/NOPB | Higher integration: includes fractional-N PLL, SPI interface, and integrated LDO; 1770 MHz max VCO (requires external divider for 155.52 MHz) | Requires microcontroller configuration and external divide-by-11.4 circuit; not drop-in for AD809BRZ-REEL7's fixed-ratio architecture | Choose when programmable output frequencies or multi-channel synchronization are needed beyond fixed 155.52 MHz |
| ICS8430AM-01LFT | LVDS output instead of PECL; 155.52 MHz fixed output but no ×8/×16 input flexibility; lower jitter (1.2° RMS) but no internal VCO tuning | Designed for clock distribution only - lacks reference mux and loop filter terminals; requires external 155.52 MHz source | Choose when sourcing 155.52 MHz from another synthesizer and only need fanout/buffering with ultra-low jitter |
Compared with LMX2531LQ1770E/NOPB and ICS8430AM-01LFT, the AD809BRZ-REEL7 uniquely combines fixed-ratio ×8/×16 synthesis, dual-reference input mux, and on-chip VCO in a simple 16-pin SOIC - eliminating configuration overhead and external dividers required by alternatives.
Availability
AD809BRZ-REEL7 is available at Aetrix Electronics and suitable for SONET/SDH line cards, fiber-in-the-loop terminals, SDH backplane timing systems, and telecom timing modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD809BRZ-REEL7 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
Analog Devices is a global semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision instrumentation, communications, and industrial applications.
The AD809BRZ-REEL7 belongs to Analog Devices' telecom timing synthesizer product line, engineered specifically for SONET/SDH bit-clock generation with minimal external components and guaranteed jitter performance across temperature.
FAQ
What reference frequencies does the AD809BRZ-REEL7 accept?
The AD809BRZ-REEL7 accepts two precise reference frequencies: 19.44 MHz for ×8 synthesis and 9.72 MHz for ×16 synthesis. These match SONET OC-3 and SDH STM-1 standards. The device auto-selects the correct multiplication ratio based on input frequency and does not support arbitrary reference inputs.
Does the AD809BRZ-REEL7 require external loop filter components besides capacitors?
No, the AD809BRZ-REEL7 requires only two external ceramic capacitors (CF1 and CF2) to set loop damping - no resistors or inductors are needed. A 22 nF capacitor yields ζ = 10 for optimal jitter transfer; the internal charge-pump PLL and VCO eliminate all other external loop components.
How does the MUX pin (Pin 15) control reference input selection on the AD809BRZ-REEL7?
On the AD809BRZ-REEL7, Pin 15 (MUX) is a TTL-level control: logic low (≤0.8 V) selects the single-ended TTL/CMOS input at Pin 10, while logic high (≥2.0 V) selects the differential PECL inputs at Pins 12/13. This enables hardware-based switching between distributed and recovered timing modes without software.
What is the phase relationship between CLKOUT (Pin 5) and TTL/CMOSIN (Pin 10) on the AD809BRZ-REEL7?
The AD809BRZ-REEL7 exhibits a fixed phase skew: the rising edge of CLKOUT (Pin 5) occurs 700 ps after the rising edge of TTL/CMOSIN (Pin 10) at +27°C. This skew remains stable across temperature (–40°C to +85°C), varying from –1000 ps to –250 ps, enabling predictable timing margin allocation in SERDES interfaces.
Can the AD809BRZ-REEL7 operate from a +3.3 V supply?
No, the AD809BRZ-REEL7 is specified only for +5 V or –5.2 V single-supply operation. Its PECL output stage and internal VCO require the full +5 V rail; operation at +3.3 V is outside absolute maximum ratings and will result in failure to lock or invalid output levels.
AD809BRZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Type:
- Clock/Frequency Synthesizer
- PLL:
- Yes
- Input:
- CMOS, ECL, PECL, TTL
- Output:
- ECL, PECL
- Number of Circuits:
- 1
- Ratio - Input:Output:
- 2:1
- Differential - Input:Output:
- Yes/Yes
- Frequency - Max:
- 155.52MHz
- Divider/Multiplier:
- No/No
- Voltage - Supply:
- 4.5V ~ 5.5V
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-SOIC
AD809BRZ-REEL7 FAQ
1.How can I place an order for AD809BRZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD809BRZ-REEL7 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 AD809BRZ-REEL7 reliable?
The price and inventory of AD809BRZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD809BRZ-REEL7 is usually 5 days.
3.What payment methods are accepted for AD809BRZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD809BRZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD809BRZ-REEL7?
AD809BRZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD809BRZ-REEL7 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 AD809BRZ-REEL7?
For technical support, including AD809BRZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD809BRZ-REEL7 requirements.
6.How does Aetrix verify that AD809BRZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD809BRZ-REEL7 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 AD809BRZ-REEL7 meets industry standards.
7.What is the process for return or replacement of AD809BRZ-REEL7?
All AD809BRZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD809BRZ-REEL7, 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 AD809BRZ-REEL7 part is unused and in its original packaging.
Return procedure for AD809BRZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD809BRZ-REEL7 Tags
-
CD74HCT4046AM96
Texas Instruments
-
MC14046BDWR2G
onsemi
-
501MILFT
Renesas
-
CD74HC7046AM
Texas Instruments
-
CDCVF2505PWR
Texas Instruments
-
RC19004A100GNL#KB0
Renesas
-
SI5351A-B-GTR
Skyworks Solutions Inc.
-
CY2305SXI-1T
Infineon Technologies
-
570BILFT
Renesas
-
CDCE913PWR
Texas Instruments
-
CY2305SXI-1HT
Infineon Technologies
-
DS1086LU+T
Analog Devices Inc./Maxim Integrated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
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…
