参数资料
| 型号： | CS5372-BSZR |
| 厂商： | Cirrus Logic Inc |
| 文件页数： | 3/22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 |
CS5371 CS5372
DS255F3
11
input signal is a steady state DC signal within
±50 mV of the common mode input voltage. Idle
tones result from patterns in the output bitstream
and appear in the measurement spectrum about
-135 dB down from full scale.
Idle tones can be eliminated by adding differential
DC offset to the modulator inputs. The added off-
set should be applied differentially to the inputs,
common mode offsets do not affect idle tones.
5.1.
Offset Enable - OFST
If the analog inputs are near the common mode
voltage when no signal is present, the OFST pin
can be used to eliminate idle tones.
When
OFST=1, -50 mV of differential offset is added to
the modulator analog inputs to push the idle tones
out of the measurement bandwidth. Care should
be taken that when OFST is active, offset voltages
generated by external circuitry do not negate the
internally added offset.
5.2.
Offset Drift
Offset drift characteristics vary from part to part
and with changes in the power supply voltages. If
the CS5371/72 is used in precision DC measure-
ment applications where offset drift is to be mini-
mized,
the
power
supplies
should
be
well
regulated.
For the lowest offset drift, the CS5371/72 modula-
tors should operate with an MCLK of 2.048 MHz.
The offset drift rate is inversely proportional to
clock frequency, with slower modulator clock rates
exhibiting more offset drift.
Operating from an
MCLK of 1.024 MHz results in twice the offset drift
rate compared to an MCLK of 2.048 MHz.
Because offset drift is not linear with temperature,
an exact drift rate per °C cannot be specified. The
CS5371/72 modulators will exhibit approximately
5 ppm/°C of offset drift operating with an MCLK of
2.048 MHz.
6. VOLTAGE REFERENCE INPUTS
The CS5371/72 modulators are designed to oper-
ate with a 2.5 V voltage reference applied across
the VREF+ and VREF- pins to set the full-scale sig-
nal range of the analog inputs. A 2.5 V voltage ref-
erence results in the highest dynamic range and
best signal-to-noise performance, though smaller
reference voltages may be used.
When the
CS5371/72 modulators are operated with a 2.5 V
reference, the analog inputs measure full-scale
signals of 5 volts peak-to-peak fully differential.
In a single supply power configuration the voltage
reference output should be connected to the
VREF+ pin with the VREF- pin connected to
ground. In a dual supply power configuration the
voltage reference should be powered from the VA+
and VA- supplies, with the modulator VREF+ pin
connected to the voltage reference output and the
VREF- pin connected to VA-. Because most 2.5 V
voltage references require a power supply voltage
greater than 3 V to operate, when powering the
voltage reference from dual supplies the reference
voltage into the VREF+ pin should be defined rela-
tive to the VA- supply.
The selected voltage reference should produce
less than 1
Vrms of noise in the measurement
bandwidth on the VREF+ pin. The digital filter out-
put word rate selection determines the bandwidth
相关PDF资料 |
PDF描述 |
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| CS5372A-ISZ | IC MODULATOR LP/HP 2CH 24-SSOP |
| CS5373A-ISZR | IC DAC/MODULATOR LP/HP 28-SSOP |
| CS5376A-IQZ | IC FILTER DGTL MULTI-CH 64-TQFP |
| CS61577-IL1Z | IC LINE INTERFACE T1/E1 28PLCC |
| CS61584A-IQ3Z | IC LINE INTERFACE T1/E1 64LQFP |
相关代理商/技术参数 |
参数描述 |
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| CS5373A | 制造商:CIRRUS 制造商全称:Cirrus Logic 功能描述:Low-power, High-performance Modulator and Test DAC |
| CS5373A-IS | 功能描述:模数转换器 - ADC IC Dlt-Sgm Modulator w/Intgrtd Tst DAC 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-ISR | 功能描述:模数转换器 - ADC IC Dlt-Sgm Modulator w/Intgrtd Tst DAC 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-ISZ | 功能描述:数模转换器- DAC IC Dlt-Sgm Modulatr w/Intgrtd Tst DAC RoHS:否 制造商:Texas Instruments 转换器数量:1 DAC 输出端数量:1 转换速率:2 MSPs 分辨率:16 bit 接口类型:QSPI, SPI, Serial (3-Wire, Microwire) 稳定时间:1 us 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-14 封装:Tube |
| CS5373A-ISZR | 功能描述:模数转换器 - ADC IC Dlt-Sgm Modulator w/Intgrtd Tst DAC 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 |
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