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參數(shù)資料
| 型號： | CS5373A-ISZR |
| 廠商： | Cirrus Logic Inc |
| 文件頁數(shù)： | 22/40頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAC/MODULATOR LP/HP 28-SSOP |
| 標準包裝： | 1,000 |
| 類型： | 調(diào)制器 |
| 分辨率（位）： | 24 b |
| 采樣率（每秒）： | 512k |
| 電壓電源： | 模擬和數(shù)字，雙 ± |
| 電源電壓： | ± 2.5V，3.3V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SSOP（0.209"，5.30mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-SSOP |
| 包裝： | 帶卷 (TR) |
| 配用： | CDB5378-ND - EVALUATION BOARD FOR CS5378 |
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CS5373A
DS703F2
29
The -3 dB corner of the input anti-alias filter is
nominally set to the internal analog sampling
rate divided by 64, which itself is a division by
4 of the MCLK input rate.
Figure 14 illustrates the CS5373A modulator
analog connections with input anti-alias filter
components. Filter components on the rough
and fine pins should be identical values for op-
timum performance, with the capacitor values
a minimum of 0.02
μF. The rough input can
use either X7R or C0G type capacitors, while
the fine input requires C0G type capacitors for
optimal linearity. Using X7R type capacitors on
the fine analog inputs will degrade total har-
monic distortion significantly.
The CS3301A/02A differential amplifiers are
designed with separate rough and fine analog
outputs (OUTR±, OUTF±) that match the
rough and fine inputs to the modulator (INR±,
INF±). Internal anti-alias series resistors are
NOT included in the amplifier analog outputs,
therefore external differential capacitors as
well as 680
Ω resistors are required to create
the anti-alias RC filters.
7.2 DAC Output Attenuation
The CS5373A test DAC has seven analog out-
put attenuation settings from 1/1 to 1/64 se-
lected with the ATT2, ATT1, and ATT0 pins.
When enabled, attenuation is applied to both
the OUT± and BUF± differential analog out-
puts. At 1/64 attenuation in AC Common Mode
(MODE 6) there is no output signal amplitude
due to the attenuator architecture.
The OUT± pins connect directly into the inter-
nal attenuator resistors and so attenuation ac-
curacy is highly sensitive to load impedance
on the OUT± pins. Loading on the BUF± pins
does not affect attenuator accuracy.
The attenuation settings of CS5373A match
the gain ranges of the CS3301A/02A differen-
tial amplifiers to enable full-scale testing at all
gain ranges. The CS3301A/02A amplifier gain
settings (GAIN) are decoded identical to the
CS5373A attenuator settings (ATT) and so
can share GPIO control signals from the
CS5378 digital filter.
7.3 DAC OUT± Precision Output
The test DAC OUT± pins are precision differ-
ential analog outputs for testing the high-per-
formance electronics measurement channel.
These precision outputs have higher perfor-
mance specifications than the BUF± outputs,
but with a much higher sensitivity to external
loading. Excessive resistive or capacitive load-
ing on the OUT± pins will degrade the analog
performance characteristics of the test DAC in
all operational modes.
The OUT± precision output is optimized for di-
rect connection to the CS3301A/02A amplifier
differential inputs, which have very high input
impedance. These amplifiers include a pin-
controlled input multiplexer to switch between
an internal differential termination for noise
MCLK Frequency = 2.048 MHz
Sampling Frequency = MCLK / 4 = 512 kHz
-3 dB Filter Corner = Sample Freq / 64 = 8 kHz
RC filter = 8 kHz = 1 / [ 2
π *(2* Rseries)*Cdiff)]
Figure 15. DAC Output Attenuation Settings
Selection
ATT[2:0]
Attenuation
dB
0
000
1/1
0 dB
1
0 0 1
1/2
-6.02 dB
2
010
1/4
-12.04dB
3
0 1 1
1/8
-18.06 dB
4
1 0 0
1/16
-24.08 dB
5
1 0 1
1/32
-30.10 dB
6
1 1 0
1/64
-36.12 dB
7
1 1 1
reserved
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CS5374 | 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:Dual High-performance Amplifier & ΔΣ Modulator |
| CS5374_0910 | 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:Dual High-performance Amplifier & ΔΣ Modulator |
| CS5374-CNZ | 功能描述:差分放大器 2-Ch DS Modulator & Hydrophone RoHS:否 制造商:Texas Instruments 通道數(shù)量:1 Channel 帶寬:2.4 GHz 可用增益調(diào)整:6 dB to 26 dB 輸入補償電壓: 共模抑制比（最小值）:- 40 dB 工作電源電壓:4.75 V to 5.25 V 電源電流:100 mA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:WQFN-24 封裝:Reel |
| CS5376 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CS5376 Rev. A Errata|Geophysical|A/D Converters |
| CS5376A | 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:Low-power, Multi-channel Decimation Filter |
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