CXA3197R
10-bit 125MSPS D/A Converter
Description
The CXA3197R is a high-speed D/A converter
which can perform multiplexed input of two system
10-bit data.
This IC realizes a maximum conversion rate of
125MSPS. Multiplexed operation is possible by
inputing the 1/2 frequency-divided clock or by halving
the frequency of the clock internally with the clock
frequency divider circuit having the reset pin. The
data input is at TTL level, and the clock input and
reset input can select either TTL or PECL level
according to the application.
Features
•
Maximum conversion rate:
During PECL operation: 125MSPS
During TTL operation: 100MSPS
•
Resolution: 10 bits
•
Low power consumption: 480mW (typ.)
•
Data input level: TTL
•
Clock, reset input level: TTL and PECL compatible
•
2:1 multiplexed input function
•
1/2 frequency-divided clock output possible by the
built-in clock frequency divider circuit
•
Voltage output (50Ω load drive possible)
•
Single power supply or ±dual power supply operation
•
Reset signal polarity switching function
AGND2
AOUTP
AOUTN
48 pin LQFP (Plastic)
LEAD TREATMENT: PALLADIUM PLATING
Structure
Bipolar silicon monolithic IC
Applications
•
LCD
•
DDS
•
HDTV
•
Communications (QPSK, QAM)
•
Measuring devices
36 35 34 33 32 31 30 29 28 27 26 25
AGND2 37
VOCLP 38
R POLARITY 39
INV 40
PS 41
DV
CC
1 42
N.C. 43
DGND1 44
(MSB) DA9 45
DA8 46
DA7 47
DA6 48
1
2
3
4
5
6
7
8
9 10 11 12
24 RESETN/E
23 RESETP/E
22 RESET/T
21 CLKN/E
20 CLKP/E
19 CLK/T
18
DIV2OUT
C1
DGND2
17 DIV2IN
16 DB0 (LSB)
15 DB1
14 DB2
13 DB3
Pin Configuration
AV
CC
2
VSET
VREF
AV
CC
O
DV
CC
2
C3
DB7
DA3
DA2
DA4
(MSB) DB9
DA5
DB8
DB6
C2
(LSB) DA0
Sony reserves the right to change products and specifications without prior notice. This information does not convey any license by
any implication or otherwise under any patents or other right. Application circuits shown, if any, are typical examples illustrating the
operation of the devices. Sony cannot assume responsibility for any problems arising out of the use of these circuits.
DA1
–1–
DB5
DB4
E97639-PS
SONY [ SONY CORPORATION ]
