ONET4291TA Datasheet, PDF (13/16 Pages) Texas Instruments – 4.25-Gbps Transimpedance Amplifier With AGC and RSSI

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ONET4291TA
SLLS670 – SEPTEMBER 2005
Pad Locations and Descriptions for the ONET4291TA
COORDINATES
x (µm)
y (µm)
100
1063
100
938
100
570
90
127
265
127
515
127
690
127
680
570
680
938
680
1063
SYMBOL
GND
GND
OUT+
V_CC
FILTER
IN
RSSI
OUT–
GND
GND
TYPE
Supply
Supply
Analog output
Supply
Analog
Analog input
Analog output
Analog output
Supply
Supply
DESCRIPTION
Circuit ground
Circuit ground
Non-inverted data output
3.3-V supply voltage
Bias voltage for photodiode
Data input to TIA
RSSI output signal
Inverted data output
Circuit ground
Circuit ground
DIE INFORMATION
Die size: 1180 µm × 780 µm
Die thickness: 8 mils (203 µm)
Pad metallization: 99.5% Al, 0.5% Cu
Pad size: octagonal pads 120 µm × 100 µm
Passivation composition: 6000-Å silicon nitride
Backside contact: none
Die ID: 4291TAA
TO46 LAYOUT EXAMPLES
Examples for layouts (top view) in 5-pin and 4-pin TO46 headers are given in Figure 18 and Figure 19,
respectively.
m
m
2.54
OUT+
GND
OUT–
VCC
RSSI
M0034-03
Figure 18. TO46 5-Pin Layout Example Using the ONET4291TA
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