VSC7997 Datasheet, PDF (1/2 Pages) Vitesse Semiconductor Corporation – 10.7 Gb/s Transimpedance Amplifier

PHYSICAL LAYER PORPOTDOUECLTECTRONIC PRODUCTS
VSC7997, VSC7998
10.7 Gb/s Transimpedance Amplifier
+5V
500Ω
V _CC=0V
FEATURES:
5KW Differential Transimpedance (VSC7997)
1.4KW Differential Transimpedance (VSC7998)
10kΩ
OFFP
I_IN
OUTP
70mA Typical Supply Current
4.8kΩ
7.2kΩ ^VEE
10kΩ
OUTN
OFFN
12pA/rtHz Typical Input Noise Current Density
Adjustable Output Offset
Low Group Delay
FBIN _{VEE = -5.2V}
BENEFITS:
High Gain with Low Power
Direct Connection to a Demux without a Post Amplifier
APD or PIN Diode Compatible
APPLICATIONS:
SONET/SDH Networking
Transponder Modules
DWDM Systems
G.975/709 Forward Error Correction (FEC)
Gigabit Ethernet
Telecommunications Transmission Systems
Test Equipment
PAD DIAGRAM:
The outputs of the VSC7997 and VSC7998 are linear for inputs up to
250mAp-p and 1000mAp-p respectively. For higher inputs, the output limits at
typically 1000mV differential, increasing the dynamic range of the system by
reducing the possibility of exceeding the input voltage range of the limiting
amplifier or clock and data recovery circuit.
1957µ (77.0mil)
1800µ (70.9mil)
Pad 21 Pad 20 Pad 19 Pad 18 Pad 17 Pad 16 Pad 15
GND FBIN GND OFFP GND OFFN GND
Pad 22
GND
Pad 14
GND
Pad 23
GND
Pad 13
GND
Pad 24
GND
Pad 12
OUTP
1957µ
(77.0mil)
Pad 25
IIN
Pad 26
GND
Top View
Pad 11
GND
Pad 10
OUTN
Pad 27
GND
Pad 9
GND
Pad 28
GND
Pad 8
GND
Pad 1 Pad 2 Pad 3 Pad 4 Pad 5 Pad 6 Pad 7
GND VEE VEE VEE VEE VEE GND
PB-VSC7997/7998-002