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HT82V16 Datasheet

  • HT82V16

  • 16-Bit CCD/CIS Analog Signal Processor

  • 139.60KB

  • 12頁

  • ETC

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HT82V16
16-Bit CCD/CIS Analog Signal Processor
Features
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Low power CMOS: 350mW
9 ADC clock latency for digital data output
16-bit 6 MSPS A/D converter
3-channel correlated double sampler
1~6 programmable gain
Input clamp circuitry for CDS-mode
Internal/external circuit for CIS
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Internal/external voltage reference
Internal MUX for channel operation
1 or 3-channel operation
Pixel-rate switch operation
Programmable 3-wire serial interface
+5V digital I/O compatibility
28-pin SOP (300mil) package
General Description
The HT82V16 is a complete analog signal pro-
cessor for CCD imaging applications. It fea-
tures a 3-channel architecture designed to
sample and condition the outputs of the
trilinear color CCD arrays. Each channel con-
sists of an input clamp, Correlated Double
Sampler (CDS), offset DAC and Programmable
Gain Amplifier (PGA), multiplexed to a high
performance 16-bit A/D converter.
The CDS amplifiers may be disabled for use
with sensors such as Contact Image Sensors
(CIS) and CMOS active pixel sensors, which do
not require CDS.
The 16-bit digital output is multiplexed into an
8-bit output word that is accessed using two
read cycles. The internal registers are pro-
grammed through a 3-wire serial interface,
which provides gain, offset, and operating mode
adjustments.
Block Diagram
O F F S E T
R E F T
C M L
R E F
O E
V o lta g e R e fe r e n c e
R IN
G IN
B IN
C L P
C L P
C L P
C D S
+
+
+
3
麓
8 b its
D A C
O ffs e t
C D S
C D S
V G A
V G A
V G A
3
麓
2 b its
C o a rs e
G a in
C o n fig
R e g is te r
3
麓
5 b its
F in e
G a in
M U X
P ix e l R a te
G u a ra n te e
P G A
1 6 - b it
A D C
C o n tro l
P o rt
D 1 5 ~ D 0
S C L K
C S
S D A T A
C D S C L K 1
C D S C L K 2
A D C C L K
Rev. 1.10
1
June 7, 2001

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