参数资料
| 型号： | CS5372A-ISZR |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 8/32页 |
| 文件大小： | 0K |
| 描述： | IC MODULATOR LP/HP 2CH 24-SSOP |
| 标准包装： | 1,000 |
| 类型： | 调制器 |
| 分辨率（位）： | 24 b |
| 采样率（每秒）： | 512k |
| 电压电源： | 模拟和数字，双 ± |
| 电源电压： | ±2.5V，3.3 V ~ 5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-SSOP（0.209"，5.30mm 宽） |
| 供应商设备封装： | 24-SSOP |
| 包装： | 带卷 (TR) |
| 配用： | 598-1778-ND - EVALUATION BOARD FOR CS5376 |
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CS5371A CS5372A
16
DS748F3
4. ANALOG SIGNALS
The CS5371A and CS5372A modulators have
differential analog inputs which are separated
into rough and fine charge differential pairs
(INR±, INF±) to maximize sampling accuracy.
Both sets of modulator inputs require a simple
differential anti-alias RC filter to ensure high-
frequency signals do not alias into the mea-
surement bandwidth.
4.1 INR±, INF± Modulator Inputs
The modulator analog inputs are separated
into differential rough and fine signals (INR±,
INF±). The positive half of the differential input
signal is connected to INR+ and INF+, while
the negative half is attached to INF- and INR-.
The INR± pins are switched-capacitor ‘rough
charge’ inputs that pre-charge the internal an-
alog sampling capacitor before it is connected
to the INF± fine input pins.
4.2 Input Impedance
The
modulator
inputs
have
a
dynamic
switched-capacitor architecture and so have a
rough charge input impedance that is inversely
proportional to the input master clock frequen-
cy and the input capacitor size, [1 / (f x C)].
Internal to the modulator, the rough inputs
(INR±) pre-charge the sampling capacitor
used by the fine inputs (INF±), therefore the in-
put current to the fine inputs is typically very
low and the effective input impedance is or-
ders of magnitude above the impedance of the
rough inputs.
CS5372A
ΔΣ Modulator
INF+
INR+
INF-
INR-
INF-
INR-
INF+
INR+
VREF+
VREF-
VA+
VA-
VD
GND
MDATA1
MFLAG1
MDATA2
MFLAG2
MCLK
MSYNC
PWDN1
OFST
PWDN2
VREF
2.5 V
VA+
VA-
10
Ω
0.01
μF
VD
CS5376A
Digital Filter
VDD2
GND
MDATA1
MFLAG1
MDATA2
MFLAG2
MCLK
MSYNC
GPIO
VA+
0.1
μF
0.01
μF
VD
VA-
0.1
μF
20nF
C0G
20nF
C0G
680
CS3301A
CS3302A
AMPLIFIER
OUTR+
OUTF+
OUTF-
OUTR-
680
20nF
C0G
20nF
C0G
680
CS3301A
CS3302A
AMPLIFIER
OUTR+
OUTF+
OUTF-
OUTR-
680
VA+
VA-
VA+
VA-
100
μF
Figure 11. Analog Signals
MCLK = 2.048 MHz
INR± Internal Input Capacitor = 20 pF
Impedance = [1 / (2.048 MHz * 20 pF)] = 24 k
Ω.
相关PDF资料 |
PDF描述 |
|---|---|
| M83723/78R10056 | CONN PLUG 5POS STRAIGHT W/PINS |
| CS5371A-ISZ | IC MODULATOR LP/HP 1CH 24-SSOP |
| M83723/72A16246 | CONN RCPT 24POS WALL MT W/PINS |
| MS27484T16A6P | CONN PLUG 6POS STRAIGHT W/PINS |
| CS5371A-ISZR | IC MODULATOR LP/HP 1CH 24-SSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| CS5372-BS | 功能描述:模数转换器 - ADC LP High Performance Delta Sigma Mod. RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| CS5372-BSR | 功能描述:模数转换器 - ADC LP High Performance Delta Sigma Mod. RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| CS5372-BSZ | 功能描述:模数转换器 - ADC IC LP Hgh Prfrmnc Delta Sigma Modultr RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| CS5372-BSZR | 功能描述:模数转换器 - ADC LP High Performance Delta Sigma Mod. RoHS:否 制造商:Texas Instruments 通道数量:2 结构:Sigma-Delta 转换速率:125 SPs to 8 KSPs 分辨率:24 bit 输入类型:Differential 信噪比:107 dB 接口类型:SPI 工作电源电压:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-32 |
| CS5373A | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:Low-power, High-performance Modulator and Test DAC |
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