SGS Thomson Microelectronics STV0190 Datasheet
DUAL40 MSPS 6-BIT ANALOG TO DIGITALCONVERTER
.
RESOLUTION6-BIT
.
MAX. SAMPLINGFREQUENCY: 40 MSPS
.
TTLDATAOUTPUTS
.
BUILT-INSAMPLINGANDHOLD CIRCUIT
.
DUAL ADC ON CHIP TO IMPROVE CHANNELMATCHING
APPLICATIONS
.
QPSK DEMODULATION IN A SATELLITE
DECODER
DESCRIPTION
The STV0190 is a dual 40 MSPS 6-bit Analog to
Digital converter.
It is dedicated to QPSK demodulation in Satellite
receiver.
The Flasharchitecturecombined with interpolation
technic gives the best trade off between power
consumption and maximum conversionspeed.
STV0190
ADVANCE DATA
SO28
(Plastic Micropackage)
ORDER CODE : STV0190
PINCONNECTIONS
V
CCO
OGND
AGND
V
TOP
V
V
MIDA
V
MIDB
V
V
BOT
V
CCA
DGND
V
CCD
CLKIN
OGND
May 1996
Thisis advance information ona newproduct nowin developmentor undergoing evaluation.Details are subject to changewithout notice.
1
2
3
4
5
INA
6
7
8
INB
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
D5B
D4B
D3B
D2B
D1B
D0B
D5A
D4A
D3A
D2A
D1A
D0A
CLKOUT
V
CCO
0190-01.EPS
1/7
STV0190
PIN CONFIGURATION
Pin N° Symbol Function
1V
CCO
2 OGND Output Buffer Ground Channel A + B
3 AGND Analog Ground
4V
5V
6V
7V
8V
9V
10 V
TOP
INA
MIDA
MIDB
INB
BOT
CCA
11 DGND Digital Ground
12 V
CCD
13 CLKIN Clock Input
14 OGND Output Buffer Ground Channel A + B
15 V
CCO
16 CLKOUT Clock Output
17 to 22 D0A to D5A D0 (LSB) to D5 (MSB) Outputs Channel A
23 to 28 D0B to D5B D0 (LSB) to D5 (MSB) Outputs Channel B
Output Buffer Supply Voltage Channel A + B
Top Reference Voltage
Analog Input Channel A
Reference Voltage DC CouplingChannel A
Reference Voltage DC CouplingChannel B
Analog Input Channel B
Bottom Reference Voltage
Analog Supply Voltage
Digital Supply Voltage
Output Buffer Supply Voltage Channel A + B
0190-01.TBL
2/7
BLOCK DIAGRAM
STV0190
V
CCA
10
V
CCD
12
V
CCO
15
1
S TV0190
V
4
TOP
5
V
INA
6
V
MIDA
ADC A
TTL
OUTPUT
LATCHES
22
21
20
19
18
17
28
27
D5A
D4A
D3A
D2A
D1A
D0A
D5B
D4B
26
25
24
23
16
13
D3B
D2B
D1B
D0B
CLKOUT
CLKIN
0190-02.EPS
11
TTL
OUTPUT
LATCHES
CLOCK
DRIVER
23
14
V
8
INB
V
7
MIDB
9
V
BOT
ADC B
AGND DGND OGND
3/7
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