M02044CG-31 Datasheet, PDF (7/22 Pages) M/A-COM Technology Solutions, Inc. – 3.3/5V Limiting Amplifier for Applications from 100 Mbps to 622 Mbps

2.0 Pin Definitions
Table 2-1.
QSOP Pin#
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin Descriptions
Name
Function
ST_SET
Loss of signal threshold setting input. Connect a 1% resistor between this pin and V_CC3 (pin 2) to set loss of signal
threshold.
V_CC3
Power supply input for 3.3V applications or the output of the internally regulated 3.3V voltage when V_CC = 5V.
Connect directly to supply for 3.3V applications (internal regulator not in use). Do not connect to power supply if
V_CC = 5V.
GND
Ground.
DINP
DINN
NC
Non-inverting data input. Internally terminated with 50Ω to V_TT (see Figure 3-2).
Inverting data input. Internally terminated with 50Ω to V_TT (see Figure 3-2).
No Connect. Leave Floating.
V_CC3
Power supply input for 3.3V applications or the output of the internally regulated 3.3V voltage when V_CC = 5V.
Connect directly to supply for 3.3V applications (internal regulator not in use). Do not connect to power supply if
V_CC = 5V.
JAM
Output disable. When high, data outputs are disabled (with non-inverting output held high and inverting output
held low). Connect to LOS output to disable outputs with loss of signal. Outputs are enabled when JAM is low or
floating. Internal 150 kΩ resistor to ground.
LOS
Loss of signal output. Goes high when input signal falls below threshold set by ST_SET. This output is an open
collector TTL with internal 80 kΩ pull-up resistor to V_CC. Leave floating if not used.
ST
Signal detect output. Goes high when input signal amplitude is above threshold set by ST_SET. In M02044, this
output is an open collector TTL with internal 80 kΩ pull-up resistor to V_CC. Leave floating if not used.
GND
Ground.
PECLN
Inverting data output (PECL).
PECLP
Non-inverting data output (PECL).
V_CC
Power supply. Connect to either +5V or +3.3V.
NC
No Connect. Leave Floating.
I_REF
Internal reference current for the LOS threshold. Must be connected to ground through a 12.1 kΩ 1% resistor.
02044-DSH-002-A
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