ADVANCED
SP8067
High Speed 11-channel Photo Detector IC
FEATURES
•
•
•
•
•
•
Dual wavelength 650 and 780nm
Data channel bandwidth 130 MHz
Selectable gain settings
Group delay error 1ns up to 86MHz
250V/µs Slew rate
Small 16-pin OPLGA package
Vs
GND
GK
HL
EI
FJ
SW1
SW2
1
2
3
4
5
6
7
8
SP8067
16-Pin
OPLGA
16
15
14
13
12
11
10
9
V
CC
WRF
D
C
B
A
RF+
RF-
APPLICATION
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•
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DVD-RAM with CD-RW capability
DVD+/-RW with CD-RW capability
Writable data storage optical devices
GENERAL DESCRIPTION
The SP8067 is an eleven-channel photo detector IC (PDIC) specially designed for high speed
DVD-RAM and DVD+/-RW applications and can operate at wavelengths of 650 and 780 nm.
The device contains three photo diode (sensor) arrays, with each having four sensors (A – D, E
– H, and I – L respectively). The eleven channels consist of four high speed channels (A, B, C,
and D), four slow channels (EI, FJ, GK, and HL), two fast summing channels with differential
output (RF+ and RF-), and one additional WRF channel. The four slow channels output is the
sum of signals from two sensors of the same sensor array (E + I, F + J, G + K, and H + L). The
WRF channels output is four times the sum of A + B + C + D channels, while the output signal
of differential channels RF+ and RF- is only 0.5 of this sum.
The SP8067 has two logic inputs for gain control that operate as tri-state logic input (Low, Mid,
and High states). These states are used to select gain factors that affect all channels. The
WRF channel is active only during Write Modes, while the RF+ and RF- channels are active
only during Read Modes. If not active, the WRF channel is in tri-state (Hi-Z) mode, while the RF
channels are fixed at their respective reference voltages (2.0v for RF+ and 3.0v for RF-
channel).
The SP8067 is manufactured with an advanced 10GHz BICMOS technology.
Rev 0.0 (11-22-04)
SP8067 – High Speed 11-Channel PDIC
SIPEX RESERVES THE RIGHT TO MAKE CHANGES TO THIS DATASHEET. CALL FOR UPDATES: 1-978-667-8700.
SIPEX CONFIDENTIAL, ADVANCED & PROPRIETARY. DO NOT DISTRIBUTE OR
COPY
page
1
of
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ADVANCED
PIN ASSIGNMENTS
Pin #
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Pin Name
Vs
GND
GK
HL
EI
FJ
SW1
SW2
RF-
RF+
A
B
C
D
WRF
V
CC
SP8067
Pin Function
Reference voltage. Bypass to GND with ceramic capacitor 0.1uF
Ground pin
Output of GK channel (sum of G + K sensor signals)
Output of HL channel (sum of H + L sensor signals)
Output of EI channel (sum of E + I sensor signals)
Output of FJ channel (sum of F + J sensor signals)
Logic input of Gain Controller. Allows three states – low, high, and middle
Logic input of Gain Controller. Allows three states – low, high, and middle
Output of RF- channel. RF- = - 0.5 x (A + B +C + D)
Output of RF+ channel. RF+ = 0.5 x (A + B + C + D)
Output of A channel
Output of B channel
Output of C channel
Output of D channel
Output of WRF channel. WRF = 4 x (A + B + C + D)
Supply voltage. Bypass to GND with ceramic capacitor 0.1uF
Rev 0.0 (11-22-04)
SP8067 – High Speed 11-Channel PDIC
SIPEX RESERVES THE RIGHT TO MAKE CHANGES TO THIS DATASHEET. CALL FOR UPDATES: 1-978-667-8700.
SIPEX CONFIDENTIAL, ADVANCED & PROPRIETARY. DO NOT DISTRIBUTE OR
COPY
page
2
of
3
Industrial Control Electronics
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