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Texas Instruments DS90CP22M-8
- Part No.:
- DS90CP22M-8
- Manufacturer:
- Texas Instruments
- Category:
- Signal Switches, Multiplexers, Decoders
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DS90CP22M-8.pdf
- Description:
- IC CROSSPOINT SW 1 X 2:2 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,363
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Product details
Overview
DS90CP22M-8 from Texas Instruments is a 2×2 LVDS crosspoint switch IC designed for high-speed serial interconnect routing in backplane and board-level applications. It operates at DC to 800 Mbps with 65 ps (typ) peak-to-peak jitter, 35 ps (typ) output channel-to-channel skew, and supports 1:2 splitting, 2:1 multiplexing, repeater, and non-blocking switch modes. It is used in fault-tolerant telecom line cards requiring low-skew signal distribution.
For engineers reviewing the DS90CP22M-8 datasheet, DS90CP22M-8 pinout, DS90CP22M-8 application, or DS90CP22M-8 equivalent, key selection criteria include its 3.3 V single-supply operation, TRI-STATE enable control, LVPECL-compatible inputs, differential output impedance matching, and SOIC-16 package compatibility with industrial temperature range (−40°C to +85°C).
Technical Context
The DS90CP22M-8 implements a fully differential LVDS data path with non-blocking switch architecture controlled by dual SEL pins, enabling four distinct functional modes per Table 1. Its receiver accepts LVDS and LVPECL signals directly without external level-shifting, and outputs drive 75 Ω or 100 Ω loads with 285–440 mV differential voltage (VOD) at 3.3 V.
Each output pair features independent enable (EN) control for TRI-STATE operation, with 25.5 ns (typ) enable time and <4.5 ns disable time. Propagation delay is 1.0–1.5 ns (typ), and pulse skew |TPLHD − TPHLD| is ≤225 ps, ensuring deterministic timing in multi-channel synchronization paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Max Data Rate | 800 Mbps - supports full-rate LVDS links in high-density serial backplanes |
| Supply Voltage | 3.0–3.6 V (typ 3.3 V) - single-rail operation compatible with standard logic supply domains |
| Differential Output Voltage (VOD) | 285–440 mV @ 75 Ω load - ensures robust signal integrity across terminated transmission lines |
| Output Skew (TCCS) | 35 ps (typ) - enables tight timing alignment between parallel LVDS channels |
| Propagation Delay | 1.0–1.5 ns (typ) - minimizes latency in repeater and switching paths |
| Jitter (Pk-Pk) | 65 ps (typ) @ 800 Mbps, PRBS=2²³−1 - meets jitter budget requirements for multi-gigabit serial interfaces |
| Operating Temp | −40°C to +85°C - qualified for industrial and telecom infrastructure environments |
Pinout & Package
DS90CP22M-8 is housed in a 16-pin SOIC (D) package with 1.27 mm pitch, 10.3 mm × 6.5 mm body size, and exposed metal-free construction. Pin 1 is located at the top-left corner with index area marking "DS90CP22M-8".
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| IN0+, IN0− | LVDS Input Pair A | Differential input accepting LVDS or LVPECL signals; no internal fail-safe bias |
| IN1+, IN1− | LVDS Input Pair B | Second differential input; unused pairs must be externally biased to VCC/GND via 10 kΩ resistors |
| OUT0+, OUT0− | LVDS Output Pair A | Configurable output driven by selected input; supports TRI-STATE via EN0 |
| OUT1+, OUT1− | LVDS Output Pair B | Independent output with separate EN1 control; matches OUT0 timing within 35 ps (typ) |
| SEL0, SEL1 | Mode Select Inputs | CMOS/TTL logic inputs defining function per Table 1: 1:2 splitter, repeater, or crosspoint switch |
| EN0, EN1 | Output Enable Inputs | Active-high enables; internal pull-down allows NC if LOW state desired; drives outputs to high-impedance |
| VCC, GND | Power & Ground | Single 3.3 V supply; requires local 0.01–0.1 µF RF ceramic + tantalum bypass per power pin |
| NC (2 pins) | No Connect | Not internally bonded; must remain unconnected on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Non-blocking 2×2 LVDS switch | Enables any input-to-output mapping without contention, supporting dynamic reconfiguration in redundant systems |
| LVPECL-compatible inputs | Accepts −0.3 V to +4 V differential input voltage without attenuation networks, simplifying interface to legacy PECL/LVPECL sources |
| Configurable operating modes | Four SEL-defined functions (1:2 splitter, repeater, crosspoint, mirrored split) reduce need for multiple discrete switches |
| Low-power TRI-STATE control | Reduces total supply current from 125 mA (active) to 55 mA (TRI-STATE), lowering thermal load during idle periods |
| Backplane-optimized drive strength | Delivers 365 mV VOD into 75 Ω, improving signal fidelity in multidrop configurations where effective line impedance drops below 100 Ω |
Applications
| Telecom Line Card Redundancy | High-Speed Serial Backplane Fan-Out |
|---|---|
|
Use Scenario: Primary/backup signal path switching in carrier-grade line cards with automatic failover. IC Role / Device Role / Timing Role: 2:1 mux selecting between active and standby LVDS data streams with sub-1.2 ns switch time. Use Value: Enables seamless switchover without packet loss or clock discontinuity due to matched propagation delay and low skew. |
Use Scenario: Distributing a single high-speed LVDS clock or data stream to multiple daughter cards in a modular chassis. IC Role / Device Role / Timing Role: 1:2 signal splitter replicating input to two isolated outputs with 35 ps channel-to-channel skew. Use Value: Maintains deterministic phase alignment across distributed endpoints, critical for synchronous sampling in test equipment. |
| LVDS Signal Repeater for Long-Distance Links | Fault-Tolerant Industrial Controller I/O Expansion |
|
Use Scenario: Restoring signal amplitude and edge integrity over >30 cm FR4 traces in automated test systems. IC Role / Device Role / Timing Role: Two-channel LVDS buffer (repeater mode) with 1.3 ns propagation delay and <400 ps transition time. Use Value: Compensates for trace loss while preserving jitter performance (<90 ps Pk-Pk), extending usable link length. |
Use Scenario: Isolating and routing sensor/actuator LVDS signals across hot-swappable I/O modules in PLC racks. IC Role / Device Role / Timing Role: Crosspoint switch enabling flexible input/output mapping between fieldbus controllers and modular endpoints. Use Value: Supports runtime reconfiguration of signal paths without hardware changes, reducing system downtime during maintenance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LVDS crosspoint switch applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SN65LVDS22DR | Same 2×2 LVDS crosspoint function but rated only to 400 Mbps; higher 150 ps typical jitter; no LVPECL input support | Suitable for cost-sensitive, lower-speed industrial interfaces where 800 Mbps headroom is unnecessary | Select SN65LVDS22DR only when data rate ≤400 Mbps and LVPECL compatibility is not required |
| DS90CP22MT/NOPB | Identical electrical specs and functionality; differs only in TSSOP-16 (PW) package vs. SOIC-16 (D) of DS90CP22M-8 | Preferred for space-constrained layouts requiring smaller footprint (5.0 mm × 4.4 mm vs. 10.3 mm × 6.5 mm) | DS90CP22MT/NOPB is a direct form-fit-function alternative with identical AC/DC performance and pinout |
Compared with SN65LVDS22DR, DS90CP22M-8 delivers double the bandwidth and lower jitter for next-gen backplanes; compared with DS90CP22MT/NOPB, it offers identical signal integrity in a larger, through-hole-compatible SOIC package optimized for manual assembly and thermal mass.
Availability
DS90CP22M-8 is available at Aetrix Electronics and suitable for telecom infrastructure, industrial controller backplanes, and automated test equipment requiring stable component supply, long-lifecycle support, and guaranteed SOIC-16 packaging.
Supply support for DS90CP22M-8 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and high-speed interface solutions, with decades of expertise in LVDS and signal integrity technologies.
The DS90CP22M-8 belongs to TI's high-speed LVDS interface product line, engineered specifically for reliable, low-jitter signal routing in mission-critical communication and industrial systems.
FAQ
What is the maximum supported data rate for DS90CP22M-8?
The DS90CP22M-8 is characterized for operation up to 800 Mbps with PRBS=2²³−1 pattern and 65 ps (typ) peak-to-peak jitter. This rating is verified across the full −40°C to +85°C temperature range and 3.0–3.6 V supply, making DS90CP22M-8 suitable for high-speed serial backplane applications demanding deterministic timing.
Does DS90CP22M-8 support LVPECL input signals without external components?
Yes, DS90CP22M-8 LVDS receiver inputs accept LVPECL signal levels directly-no external termination or attenuation networks are required. The input common-mode range extends from 0.05 V to 3.25 V, accommodating LVPECL's typical 1.2 V common-mode voltage while maintaining <±100 mV threshold sensitivity.
How does the DS90CP22M-8 handle unused input pins?
Unused LVDS inputs on DS90CP22M-8 must be externally biased: IN+ tied to VCC via 10 kΩ and IN− tied to GND via 10 kΩ. This prevents noise coupling into the high-gain differential receiver stage. Control inputs (SEL, EN) have internal pull-downs, so leaving them unconnected defaults to LOW mode selection.
What is the power dissipation of DS90CP22M-8 under typical operating conditions?
DS90CP22M-8 draws 98–125 mA total supply current (ICCD) when both outputs are active, equating to ~330 mW at 3.3 V. In TRI-STATE mode (EN0 = EN1 = LOW), supply current drops to 43–55 mA (~150 mW), significantly reducing thermal load during idle states without disabling bias circuitry.
Can DS90CP22M-8 be used in multidrop LVDS configurations?
Yes, DS90CP22M-8 is enhanced for multidrop use: its 365 mV VOD into 75 Ω better matches reduced differential impedance in closely spaced stubs. Unlike standard LVDS drivers, DS90CP22M-8 maintains signal integrity in backplane topologies where line impedance falls to ~70 Ω due to capacitive loading.
DS90CP22M-8 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Last Time Buy
- Type:
- Crosspoint Switch
- Circuit:
- 1 x 2:2
- Independent Circuits:
- 1
- Current - Output High, Low:
- -
- Voltage Supply Source:
- Single Supply
- Voltage - Supply:
- 3V ~ 3.6V
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DS90CP22M-8 FAQ
1.How can I place an order for DS90CP22M-8 through Aetrix?
Please submit a Request for Quotation (RFQ) for DS90CP22M-8 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 DS90CP22M-8 reliable?
The price and inventory of DS90CP22M-8 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DS90CP22M-8 is usually 5 days.
3.What payment methods are accepted for DS90CP22M-8?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DS90CP22M-8 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DS90CP22M-8?
DS90CP22M-8 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DS90CP22M-8 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 DS90CP22M-8?
For technical support, including DS90CP22M-8 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DS90CP22M-8 requirements.
6.How does Aetrix verify that DS90CP22M-8 is sourced from the original manufacturer or authorized distributors?
All DS90CP22M-8 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 DS90CP22M-8 meets industry standards.
7.What is the process for return or replacement of DS90CP22M-8?
All DS90CP22M-8 units undergo pre-shipment inspection (PSI). If there is an issue with DS90CP22M-8, 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 DS90CP22M-8 part is unused and in its original packaging.
Return procedure for DS90CP22M-8:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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