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M02028
100 Mbps to 1.25 Gbps Multi-rate CMOS TIA with AGC
Overview
Description
The M02028 is a multi-rate 1.25 Gbps TIA with wide input dynamic range that supports different transmission distance
requirements. With a typical input overload of 4 mApp, it supports short-haul fiber optic systems. Additionally, a typical input
sensitivity of -31.0 dBm allows the detection of very small signals in a noisy environment making it ideal for high split ratio PON networks. With ultra-high sensitivity, the M02028 can accurately detect the optical data without requiring the use of APDs
(avalanche photodiodes).
In order to satisfy such high sensitivity and optical overload requirements, the M02028 includes automatic gain control (AGC).
The AGC monitors the output amplitude and automatically reduces the TIA gain when the photodiode current exceeds the AGC threshold, maintaining the output at a constant amplitude level for input signals exceeding the AGC threshold.
An accurate replica across the entire dynamic range of the M02028 of the average photodiode current is available at the MON
pad for photo-alignment and RSSI average power monitoring.
requirements. With a typical input overload of 4 mApp, it supports short-haul fiber optic systems. Additionally, a typical input
sensitivity of -31.0 dBm allows the detection of very small signals in a noisy environment making it ideal for high split ratio PON networks. With ultra-high sensitivity, the M02028 can accurately detect the optical data without requiring the use of APDs
(avalanche photodiodes).
In order to satisfy such high sensitivity and optical overload requirements, the M02028 includes automatic gain control (AGC).
The AGC monitors the output amplitude and automatically reduces the TIA gain when the photodiode current exceeds the AGC threshold, maintaining the output at a constant amplitude level for input signals exceeding the AGC threshold.
An accurate replica across the entire dynamic range of the M02028 of the average photodiode current is available at the MON
pad for photo-alignment and RSSI average power monitoring.
Features
- Typical -31.0 dBm sensitivity with CPD of 0.75 pF
- Data rates from 100 Mbps 8b/10b to 1.25 Gbps
- No filter (PINK) capacitor required
- No internal ROSA VCC filter capacitor required for typical operation
- Two RSSI (IMON) options to support APD and PIN Diode PD
- 20 kΩ differential transimpedance
- 4 mApp overload input current
- On-die temperature sensor (M02028-11/-21/-31)
- Bonding flexibility (M02028-12/-22/-32)
- Internal or external bias for photodiode
- Single +3.3 V supply
Ordering Information
| Part | Description | Package | Pin Count | Status |
|---|---|---|---|---|
| M02028-11 | 1G High Sensitivity TIA Waffle Pack | DIE | n/a |  |
| M02028-11P | 1G High Sensitivity TIA Waffle Pack | DIE | n/a | |
| M02028-12 | 1G High Sensitivity TIA Waffle Pack | DIE | n/a | |
| M02028-21 | M02028-QSPBG WAFER | DIE SALE | n/a | |
| M02028-22 | M02028-QSPBG WAFER | DIE | n/a | |
| M02028-22P | M02028-QSPBG WAFER | DIE | n/a | |
| M02028-31 | M02028-SAWN-PROBED-DIE-W-BG | DIE SALE | n/a | |
| M02028-32 | M02028-SAWN-PROBED-DIE-W-BG | DIE | n/a | |
| M02028-ROS-001 | 2.5G PIN ROSA | n/a | n/a | |
Documentation
- Hardware Design Docs
- RoHS/IPC Report
-
M02028 IPC Report v1.1a TSMC (323.52 KB)
October 5, 2012
-
M02028 IPC Report v1.1a TSMC (323.52 KB)
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Applications
- GEPON
- Gigabit Ethernet
- Fibre Channel
- 1.25 Gbps SFF/SFP Modules
- ATM/SONET
- CPRI base station
