參數(shù)資料
型號(hào): TC9470FN
廠商: Toshiba Corporation
英文描述: ?-? Modulation DA Converter with Built-in 8-Times Oversampling Digital Filter/Dynamic Digital Bass Boost/Analog Filter
中文描述: ? - ?調(diào)制DA轉(zhuǎn)換器與內(nèi)置8時(shí)報(bào)采樣數(shù)字濾波器/動(dòng)態(tài)低音增強(qiáng)數(shù)字/模擬濾波器
文件頁(yè)數(shù): 1/20頁(yè)
文件大小: 264K
代理商: TC9470FN
TC9470FN
2002-02-27
1
TOSHIBA CMOS Digital Integrated Circuit Silicon Monolithic
TC9470FN
Σ
-
Modulation DA Converter with Built-in 8-Times Oversampling Digital Filter/Dynamic
Digital Bass Boost/Analog Filter
The TC9470FN is a second-order
Σ
-
modulation system
1
-bit DA converter incorporating an 8-times oversampling digital
filter, dynamic digital bass boost function for use with compressor
operations and an analog filter developed for digital audio
equipment.
Because the IC includes an analog filter, it can output a direct
analog waveform, thus reducing the size and cost of the DA
converter.
Features
Built-in 8-times oversampling digital filter
Low-voltage operations (2.4 V) possible
Built-in digital de-emphasis filter
Built-in dynamic digital bass boost function
In serial control mode, output amplitude can be set in 4096 steps of resolution using microcontroller commands
In parallel control mode, soft mute can be set for the output signal in 64 steps in 23 ms
Built-in LR common digital zero detection output circuit
Sampling frequency: 44.
1
kHz
Supports 384 fs/256 fs (automatic switching)
DA converter oversampling ratio (OSR):
1
92 fs (at 384 fs)
Stereo/monaural output selection possible
Built-in third-order analog filter
The digital filter and DA converter characteristics are shown on the next page
Digital Filter
Digital Filter
Passband Ripple
Transient
Bandwidth
Attenuation
Standard operation
8 fs
±0.11dB
20 k to 24.1 kHz
26dB or less
DA Converter
(V
DD
= 2.7 V)
OSR
Noise Distortion
S/N Ratio
Standard operation
192 fs
82dB (typ.)
90dB (typ.)
Weight: 0.14 g (typ.)
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