參數(shù)資料
型號(hào)： CS5371A-ISZR
廠商： Cirrus Logic Inc
文件頁(yè)數(shù)： 8/32頁(yè)
文件大小： 0K
描述： IC MODULATOR LP/HP 1CH 24-SSOP
標(biāo)準(zhǔn)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
電源電壓： ±2.5V，3.3 V ~ 5 V
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 24-SSOP（0.209"，5.30mm 寬）
供應(yīng)商設(shè)備封裝： 24-SSOP
包裝： 帶卷 (TR)
配用： 598-1778-ND - EVALUATION BOARD FOR CS5376
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.
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CS5371-BS 功能描述:模數(shù)轉(zhuǎn)換器 - ADC LP High Performance Delta Sigma Mod. RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
CS5371-BSR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC LP High Performance Delta Sigma Mod. RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
CS5371-BSZ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC IC LP Hgh Prfrmnc Delta Sigma Modultr RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
CS5371-BSZR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC LP High Performance Delta Sigma Mod. RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
CS5372 制造商:CIRRUS 制造商全稱:Cirrus Logic 功能描述:LOW POWER HIGH PERFORMANCE MODULATORS
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