参数资料
| 型号： | CS5372A-ISZR |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 16/32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
DS748F3
23
8. POWER SUPPLIES
The CS5371A and CS5372A modulators have
a positive analog power supply pin (VA+), a
negative analog power supply pin (VA-), a dig-
ital power supply pin (VD), and a ground pin
(GND).
For proper operation, power must be supplied
to all power supply pins, and the ground pin
must be connected to system ground. The
CS5371A and CS5372A digital power supply
(VD) and the CS5376A digital power supply
(VDD) must share a common voltage.
8.1 Power Supply Bypassing
The VA+, VA-, and VD power supplies should
be bypassed to system ground with 0.1
μF ca-
pacitors placed as close as possible to the
power pins of the device. In addition to the
0.1
μF local bypass capacitors, at least 100 μF
bulk capacitance to system ground should be
placed on each power supply near the voltage
regulator output, with additional power supply
bulk capacitance placed among the analog
component route if space permits. Bypass ca-
pacitors should be X7R, C0G, tantalum, or
other high-quality dielectric type.
8.2 PCB Layers and Routing
The CS5371A and CS5372A are high-perfor-
mance devices, and special care must be tak-
en to ensure power and ground routing is
correct. Power can be supplied either through
dedicated power planes or routed traces.
When routing power traces, it is recommended
to use a “star” routing scheme with the star
point either at the voltage regulator output or at
a local power supply bulk capacitor.
It is also recommended to dedicate a full PCB
layer to a solid ground plane, without splits or
routing. All bypass capacitors should connect
between the power supply circuit and the solid
ground plane as near as possible to the device
power supply pins.
The CS5371A and CS5372A analog signals
are differentially routed and do not normally re-
quire connection to a separate analog ground.
However, if a separate analog ground is re-
quired, it should be routed using a “star” rout-
ing scheme on a separate layer from the solid
ground plane and connected to the ground
plane only at a single point. Be sure all active
devices and passive components connected
to the separate analog ground are included in
the “star” route to ensure sensitive analog cur-
rents do not return through the ground plane.
8.3 Power Supply Rejection
Power supply rejection of the CS5371A and
CS5372A
is
frequency
dependent.
The
CS5376A digital filter fully rejects power sup-
ply noise for frequencies above the selected
digital filter corner frequency. Power supply
noise frequencies between DC and the digital
filter corner frequency are rejected as speci-
fied in the Power Supply Characteristics table.
CS5371A
CS5372A
VA+
VD
VA-
GND
0.1 uF
100 uF
0.1 uF
100 uF
0.1 uF
To VA+
Regulator
To VA-
Regulator
To VD
Regulator
Figure 15. Power Supply Diagram
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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