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Data channel bandwidth140MHz
Settling Time: 9ns to 1% for 1.5V step
Three selectable Gain Settings
Group DelayError less than 2ns up to 70MHz
Low Offset Drift of less than 20uV/
擄C
Low Offset Voltage of less than 10mV
V
REF
SW1
SW2
H+L
G+K
F+J
E+I
GND
1
2
3
4
5
6
7
8
16 V
CC
15 D
SP8051
16 Pin COB
14 C
13 RF+
12 RF-
11 B
10 A
9 GND
DESCRIPTION
The SP8051 is a high performance 8 channel PDIC with a fully integrated photo detector array
ideally suited for high speed DVDRW, DVDRAM and CDRW systems. Responsivity is fully
specified at wavelengths of 650nm and 780nm. The 8 channels consist of 4 high speed channels
(A, B, C, D) for data detection as well as 4 tracking channels (E, F, G, H) for beam positioning
requirements. Two additional outputs (RF+ and RF-) representing the sums of the high speed
channels are also provided.
The SP8051 is manufactured with an advanced, fully complementary proprietary BiCMOS
process that enables integration of on-board multiple photo detector arrays.
V
CC
A
VA
B
VB
C
VC
D
VD
E
I
F
J
G
K
H
L
V (F + J)
V (E + I)
VS
V (G + K)
GND
V (H + L)
BIAS CIRCUIT
VRF + (A-D)
VA
SW1 (GAIN)
VB
VC
VD
SW2 (GAIN)
BIAS CIRCUIT - 1
VRF - (A-D)
BIAS CIRCUIT - 2
SP8051 Functional Diagram
Rev. 4/29/03
SP8051, 8 Channel, 140MHz PDIC Receiver with Gain Switching
漏 Copyright 2003 Sipex Corporation
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