HT82V48 Datasheet, PDF (1/14 Pages) Holtek Semiconductor Inc – 6-Channel, 16-Bit, 120MSPS CIS Analog Signal Processor

HT82V48
6-Channel, 16-Bit,
120MSPS CIS Analog Signal Processor
Features
• 3.3V operating voltage
• Up to 120MSPS for 6-channel inputs
• 9-bit programmable gain amplifier
• 8-bit programmable offset
• 4-bit programmable line-clamping bias
• Internal voltage reference
• 3-wire serial control interface
• 48-pin LQFP-EP package
Applications
• Currency Scanner Double Sided Scanners
Block Diagram
AVDD1
AVSS1
REFT1
General Description
The HT82V48 is a fully integrated, dual high
performance 16-bit 3-channel 60MSPS analog
signal processor for high-speed double-sided scanner
applications.
Each channel consist a Sample and Hold Amplifier,
a 9-bit Programmable Gain Amplifier and an 8-bit
offset correction Digital to Analog Converter. The
PGA and offset DAC are programmed independently
allowing unique values of gain and offset for the two
3-channel analog inputs. Each of the 3-channel signals
are routed to a 60MHz high performance analog-to-
digital converter.
For image sensor reference level stabilisation, the
device also provide programmable line-clamping bias
internally.
The internal registers are programmed through a
3-wire serial interface, which provides timing control,
gain, offset and operating mode adjustments.
The device operates from a single 3.3V power supply
with a typical power consumption of 925mW.
REFB1
CML1
DVDD1
DVSS1
VIR1
VIG1
VIB1
BIAS1
VIR2
VIG2
VIB2
BIAS2
Clamp
DAC
CDAC[3:0]
PGA1R[8:0]
PGA1G[8:0]
PGA1B[8:0]
SHA
SHA
SHA
+
+
+
PGA
PGA
PGA
33::11
MUX
16-bit
ADC
Bandgap
Reference
AFE #1
Offset
CDlaAmCp
CDlaAmCp
DAC
OS1R[7:0]
OS1G[7:0]
OS1B[7:0]
AFE #2
33::11
MUX
16-bit
ADC
AFE
TG
SCI
CTL
REG
MUX
ADCK
SH
CLP
SCK
SD
SEB
OEB
D[15:8]
D[7:0]
AVDD2
AVSS2
REFT2
REFB2
CML2
DVDD2
DVSS2
Rev. 1.20
1
May 19, 2017