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NXP Semiconductors TZA3047BVH/C1,551
- Part No.:
- TZA3047BVH/C1,551
- Manufacturer:
- NXP Semiconductors
- Category:
- Laser Drivers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
TZA3047BVH/C1,551.pdf
- Description:
- IC LASER DRV 1.25GB 3.47V 32HBCC
- Quantity:
- Payment:
- Shipping:
Inventory:3,641
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Product details
Overview
TZA3047BVH/C1,551 from NXP Semiconductors (formerly Philips Semiconductors) is a DC-coupled laser driver IC for high-speed optical transmission systems, supporting data rates from 30 Mbits/s to 1.25 Gbits/s. It delivers up to 100 mA bias current and 100 mA modulation current, features dual-loop or average-loop optical power control, and operates with 3.3 V or 5 V laser supply voltage - optimized for SONET/SDH transceivers.
For engineers reviewing the TZA3047BVH/C1,551 datasheet, TZA3047BVH/C1,551 pinout, TZA3047BVH/C1,551 application, or TZA3047BVH/C1,551 equivalent, key selection considerations include its HBCC32 package, DC-coupling capability, programmable extinction ratio (5–15), average monitor current range (150–1300 µA), and integrated alarm functions for operating and monitor current faults.
Technical Context
The TZA3047BVH/C1,551 implements a dual-loop control architecture that independently regulates optical average power (via AVR pin) and extinction ratio (via ER pin) by closed-loop monitoring of photodiode current at the MON input. Its RF output stage uses high-speed bipolar differential pairs with 120 ps typical rise/fall times and supports both PECL/LVPECL/CML inputs.
It integrates retiming (synchronized to external clock), pulse width adjustment (±100 ps), soft-start sequencing, and open-drain alarm outputs (ALOP/ALMON) triggered by programmable thresholds on MAXOP/MAXMON pins. The device uses an internal 1.2 V bandgap reference (RREF) and provides temperature-sensing via VTEMP (−2.2 mV/K coefficient).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Data rate | 30 Mbits/s to 1.25 Gbits/s - supports OC-3 to OC-24 SDH/SONET line rates |
| Bias current | Up to 100 mA - sufficient for driving high-power FP/DFB lasers in DC-coupled configurations |
| Modulation current | Up to 100 mA - enables high extinction ratio with low jitter under 5 V laser supply |
| Rise/fall time | Typical 120 ps - ensures clean eye diagrams at 1.25 Gbps with 25 Ω load |
| Jitter | <30 ps peak-to-peak - meets SONET OC-24 jitter budget requirements |
| Average monitor range | 150–1300 µA - programmable optical power level across laser aging and temperature |
| Extinction ratio | 5–15 (linear scale) - digitally tunable via ER pin for precise signal integrity control |
Pinout & Package
Package: HBCC32 - plastic thermal-enhanced bottom chip carrier, 32-terminal, 5 × 5 × 0.65 mm body (SOT560-1), with exposed die pad for thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VCCA / VCCD / VCCO | Analog, digital, and output-stage supply rails | Separate 3.3 V domains isolate noise-sensitive analog core from digital logic and high-current RF outputs |
| DIN / DINQ / CIN / CINQ | Differential data and clock inputs | PECL/LVPECL/CML-compatible with internal common-mode bias - eliminates need for external termination resistors |
| LA / LAQ | Differential laser modulation outputs | LA drives laser diode; LAQ drives dummy load - optimized 2 V dynamic range and 1.2 V minimum voltage for DC-coupled operation |
| BIAS | Laser bias current source output | 0.8 V min @ 3.3 V VCCO; 1.2 V min @ 5 V VCCO - ensures sufficient headroom for laser forward voltage drop |
| MON | Monitor photodiode RF input | 27 Ω input impedance - matched for direct connection to PIN photodiode without AC coupling |
| AVR / ER | Control loop programming inputs | Sink current inputs (−15 to −280 µA) setting average power and extinction ratio - resistor-programmable with 10% accuracy |
| ALOP / ALMON | Open-drain alarm outputs | Active-low signals indicating overcurrent on laser operating or monitor diode path - interface directly to microcontroller GPIO |
| ENABLE | Global enable/disable control | High-impedance pull-up (20 kΩ) - laser shuts off within 1 µs when driven LOW |
Key Features
| Feature | Design Value |
|---|---|
| DC-coupled laser drive | Supports 3.3 V and 5 V laser supplies - eliminates AC coupling capacitors and associated size/cost penalties in compact transceiver modules |
| Dual-loop optical control | Simultaneously stabilizes average optical power and extinction ratio against temperature drift and laser aging - reduces system-level calibration overhead |
| Integrated retiming | Synchronizes data to external clock on rising edge - improves jitter performance without requiring external CDR IC |
| Pulse width adjustment | ±100 ps fine-tuning via external resistor on PWA pin - compensates for PCB trace skew and laser turn-on delay mismatch |
| Temperature sensing | VTEMP pin outputs voltage with −2.2 mV/K coefficient - enables real-time thermal compensation of bias/modulation currents in firmware |
Applications
| SONET OC-3 Transceiver | SONET OC-12 Transceiver |
|---|---|
Use Scenario: 155 Mbps optical line card in telecom central office equipment. IC Role / Device Role / Timing Role: Laser driver providing DC-coupled bias and modulation for 1310 nm DFB laser, with dual-loop feedback from monitor photodiode. Use Value: Maintains stable extinction ratio >9 dB across −40°C to +85°C ambient, eliminating manual recalibration during field deployment. | Use Scenario: 622 Mbps SFP module for metro access networks. IC Role / Device Role / Timing Role: High-speed laser driver with integrated retiming and pulse width adjustment to meet GR-468 reliability and jitter specs. Use Value: 120 ps rise/fall times and <30 ps jitter ensure BER <1e−12 at 622 Mbps without external equalization. |
| SONET OC-24 Transceiver | Fiber Channel 1G/2G Module |
Use Scenario: 1.25 Gbps line interface in enterprise backbone switches. IC Role / Device Role / Timing Role: Laser driver implementing average-loop control for constant optical power, with alarm outputs tied to host controller fault reporting. Use Value: Programmable 150–1300 µA average monitor range accommodates wide variation in photodiode responsivity across production lots. | Use Scenario: 1.0625/2.125 Gbps Fibre Channel transceiver in storage area network (SAN) hardware. IC Role / Device Role / Timing Role: DC-coupled laser driver supporting both 3.3 V and 5 V laser diodes, with ENABLE pin used for hot-plug laser shutdown. Use Value: Internal 20 kΩ pull-up on ENABLE allows safe default-off state during module insertion, meeting FC-PI-2 hot-swap requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar laser driver applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX3736AETE+ | Single 3.3 V supply; no 5 V laser support; lower max modulation current (85 mA); integrated CDR not present | Targeted at cost-sensitive 1.25 Gbps SFP modules with AC-coupled lasers only | Select when 5 V laser compatibility and dual-loop precision are not required |
| ADN2850ACPZ-R7 | Requires external op-amps for loop control; no integrated pulse width adjustment; higher power dissipation (650 mW) | Used in lab-grade test equipment where flexibility outweighs integration | Select when full analog control loop customization is needed over integrated dual-loop automation |
Compared with MAX3736AETE+ and ADN2850ACPZ-R7, the TZA3047BVH/C1,551 uniquely combines 5 V laser support, true dual-loop optical stabilization, and ±100 ps pulse width tuning in a single HBCC32 package - reducing BOM count and layout complexity for telecom-grade transceivers.
Availability
TZA3047BVH/C1,551 is available at Aetrix Electronics and suitable for SONET OC-3/OC-12/OC-24 optical transmission systems, fiber channel modules, and telecom line cards requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for TZA3047BVH/C1,551 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
NXP Semiconductors is a global semiconductor leader focused on secure connectivity solutions for automotive, industrial, and communications markets, with deep heritage in RF and mixed-signal design from its Philips Semiconductors roots.
The TZA3047BVH/C1,551 belongs to NXP's high-speed optical interface product line, engineered specifically for reliable, low-jitter laser driving in carrier-class SDH/SONET infrastructure - emphasizing thermal stability, programmable optical control, and robust fault detection.
FAQ
What is the maximum laser supply voltage supported by the TZA3047BVH/C1,551?
The TZA3047BVH/C1,551 supports up to 5.3 V on the VCCO pin, enabling direct DC-coupled operation with 5 V laser diodes - a key distinction from the AC-coupled TZA3047A variant. This capability is confirmed in the Limiting Values table (Section 8) and General Description (Section 3), where VCCO = 5 V operation is explicitly specified for TZA3047B devices. The TZA3047BVH/C1,551 must be used with appropriate decoupling and thermal management when operating at 5 V.
Does the TZA3047BVH/C1,551 require external components for dual-loop control?
Yes, the TZA3047BVH/C1,551 requires external resistors on the AVR, ER, MAXOP, and MAXMON pins to set average power, extinction ratio, and alarm thresholds. For example, a 7.5 kΩ resistor on AVR sets ~550 µA average monitor current, and a 62 kΩ resistor on ER sets ~10 linear-scale extinction ratio. These values are derived from the design equations in Section 12.1.2 of the datasheet. No external op-amps or DACs are needed - the TZA3047BVH/C1,551 performs all closed-loop computation internally.
How does the TZA3047BVH/C1,551 handle laser temperature variations?
The TZA3047BVH/C1,551 mitigates laser temperature drift through two mechanisms: first, its dual-loop control continuously adjusts bias and modulation currents based on real-time photodiode feedback, maintaining constant optical 'one' and 'zero' levels independent of temperature; second, the VTEMP pin provides a calibrated −2.2 mV/K voltage output, allowing host firmware to apply additional compensation. Both features are documented in Sections 7.5 and 7.11, and validated across −40°C to +85°C ambient in DC characteristics (Section 10).
Can the TZA3047BVH/C1,551 operate without an external clock for retiming?
Yes, the TZA3047BVH/C1,551 can disable retiming by holding both CIN and CINQ inputs below 0.3 V, as specified in Section 7.2 and Table 10 (Vi(CIN)(dis)). In this mode, it operates as a non-retimed laser driver using only the DIN/DINQ data path. The device retains full functionality - including dual-loop control, pulse width adjustment, and alarm monitoring - making it suitable for applications where clock distribution is impractical or where jitter tolerance permits direct data-driven operation.
What is the purpose of the ACDC pin on the TZA3047BVH/C1,551?
The ACDC pin on the TZA3047BVH/C1,551 configures the output stage coupling: for DC-coupled laser operation (TZA3047B), ACDC must be connected to ground; for AC-coupled operation (TZA3047A), it must be left unconnected. This pin selects internal biasing networks optimized for each coupling method - ensuring correct DC operating point and RF performance. The requirement is explicitly stated in Note 2 of the Pinning section (Section 6) and reinforced in the General Description (Section 3).
TZA3047BVH/C1,551 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Series:
- -
- Package/Case:
- 32-WFQFN Exposed Pad
- Packaging:
- Bag
- Product Status:
- Obsolete
- Type:
- Laser Diode Driver (Fiber Optic)
- Data Rate:
- 1.25Gbps
- Number of Channels:
- 1
- Voltage - Supply:
- 3.14V ~ 3.47V
- Current - Supply:
- 40 mA
- Current - Modulation:
- 100mA
- Current - Bias:
- 100 mA
- Operating Temperature:
- -40°C ~ 85°C
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 32-HBCC (5x5)
- Mounting Type:
- Surface Mount
TZA3047BVH/C1,551 FAQ
1.How can I place an order for TZA3047BVH/C1,551 through Aetrix?
Please submit a Request for Quotation (RFQ) for TZA3047BVH/C1,551 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 TZA3047BVH/C1,551 reliable?
The price and inventory of TZA3047BVH/C1,551 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TZA3047BVH/C1,551 is usually 5 days.
3.What payment methods are accepted for TZA3047BVH/C1,551?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TZA3047BVH/C1,551 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TZA3047BVH/C1,551?
TZA3047BVH/C1,551 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TZA3047BVH/C1,551 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 TZA3047BVH/C1,551?
For technical support, including TZA3047BVH/C1,551 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TZA3047BVH/C1,551 requirements.
6.How does Aetrix verify that TZA3047BVH/C1,551 is sourced from the original manufacturer or authorized distributors?
All TZA3047BVH/C1,551 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 TZA3047BVH/C1,551 meets industry standards.
7.What is the process for return or replacement of TZA3047BVH/C1,551?
All TZA3047BVH/C1,551 units undergo pre-shipment inspection (PSI). If there is an issue with TZA3047BVH/C1,551, 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 TZA3047BVH/C1,551 part is unused and in its original packaging.
Return procedure for TZA3047BVH/C1,551:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TZA3047BVH/C1,551 Tags
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EPC21701
EPC
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EPC21601
EPC
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MAX3799ETJ+T
Analog Devices Inc./Maxim Integrated
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AD9665ACPZ-REEL7
Analog Devices Inc.
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MAX3740AETG+T
Analog Devices Inc./Maxim Integrated
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MAX3795ETG+
Analog Devices Inc./Maxim Integrated
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EPC21603
EPC
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ONET8501VRGPT
Texas Instruments
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MAX3738ETG+T
Analog Devices Inc./Maxim Integrated
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SY88022ALMG-TR
Microchip Technology
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ISL78365ARZ-T7A
Renesas
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EPC21603ENGRT
EPC
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