參數(shù)資料
型號： CS4373A
廠商： Cirrus Logic, Inc.
英文描述： Low-power, High-performance Test DAC
中文描述： 低功耗，高性能DAC的測試
文件頁數(shù)： 1/34頁
文件大?。?/td> 469K
代理商： CS4373A
Copyright
Cirrus Logic, Inc. 2006
(All Rights Reserved)
http://www.cirrus.com
CS4373A
Low-power, High-performance
Σ
Test DAC
Features
z
Digital
Σ
Input from CS5376A Digital Filter
z
Selectable Differential Analog Outputs
Precision output (
OUT±
) for electronics tests
Buffered output (
BUF±
) for sensor tests
z
Multiple AC and DC Operational Modes
Signal bandwidth: DC to 100 Hz
Max AC amplitude: 5 V
PP
differential
Max DC amplitude: + 2.5 V
dc
differential
z
Selectable Attenuation for
CS3301A / CS3302A
1, 1/2, 1/4, 1/8, 1/16, 1/32, 1/64
z
Outstanding Performance
AC (OUT): -116 dB THD typical, -112 dB max
AC (BUF): -108 dB THD typical, -90 dB max
DC absolute accuracy: 0.4% typical, 1% max
z
Low Power Consumption
AC modes / DC modes: 40 mW / 20 mW
Sleep mode / Power Down: 1 mW / 10
μ
W
z
Extremely Small Footprint
28-pin SSOP package, 8 mm x 10 mm
z
Bipolar Power Supply Configuration
VA+ = +2.5 V;VA- = -2.5 V;VD = +3.3 V
Description
The CS4373A is a high-performance, differential output
digital-to-analog converter (DAC) with programmable at-
tenuation and multiple operational modes. AC test
modes measure system dynamic performance through
THD and CMRR tests while DC test modes are for gain
calibration and pulse tests.
The CS4373A is driven by a
Σ
digital bit stream from the
CS5376A digital filter test bit stream (TBS) generator. It
has two sets of differential analog outputs,
OUT
and
BUF
, to simplify system design as dedicated outputs for
testing the electronics channel and for in-circuit sensor
tests. Analog output attenuation is selected by simple pin
settings
and
matches
CS3301A / CS3302A differential amplifiers for full-scale
testing at all gain ranges.
the
gain
of
the
The CS4373A test DAC provides self-test and precision
calibration capability for high-resolution, low-frequency
multi-channel measurement systems designed from
CS3301A / CS3302A
CS5371A / CS5372A
Σ
modulators and the CS5376A
digital filter.
differential
amplifiers,
ORDERING INFORMATION
See
page 34
.
24-Bit
DAC
Σ
Attenuator
Clock
Generator
TDATA
VA+
MODE(0, 1, 2)
ATT(0, 1, 2)
VD
VA-
VREF+
VREF-
GND
OUT+
OUT-
BUF+
BUF-
CAP+ CAP-
MCLK
MSYNC
DEC ‘06
DS699F2
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