參數(shù)資料
型號(hào)： DSD1792DBG4
廠商： Texas Instruments
文件頁(yè)數(shù)： 34/57頁(yè)
文件大?。?/td> 0K
描述： IC 24BIT STEREO AUD DAC 28-SSOP
產(chǎn)品培訓(xùn)模塊： Data Converter Basics
標(biāo)準(zhǔn)包裝： 47
位數(shù)： 24
數(shù)據(jù)接口： 串行
轉(zhuǎn)換器數(shù)目： 2
電壓電源： 模擬和數(shù)字
功率耗散（最大）： 335mW
工作溫度： -25°C ~ 85°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 28-SSOP（0.209"，5.30mm 寬）
供應(yīng)商設(shè)備封裝： 28-SSOP
包裝： 管件
輸出數(shù)目和類(lèi)型： 4 電流，單極
采樣率（每秒）： 200k
DSD1792
SLES067B MARCH 2003 REVISED NOVEMBER 2006
www.ti.com
4
ELECTRICAL CHARACTERISTICS (Continued)
all specifications at TA = 25°C, VCC1 = VCC2L = VCC2R = 5 V, fS = 44.1 kHz, system clock = 256 fS, and 24-bit data unless otherwise noted
PARAMETER
TEST CONDITIONS
DSD1792DB
UNIT
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DYNAMIC PERFORMANCE (MONO MODE) (1)(2)
fS = 44.1 kHz
0.0004%
THD+N at VOUT = 0 dB
fS = 96 kHz
0.0008%
THD+N at VOUT = 0 dB
fS = 192 kHz
0.0015%
EIAJ, A-weighted, fS = 44.1 kHz
132
Dynamic range
EIAJ, A-weighted, fS = 96 kHz
132
dB
Dynamic range
EIAJ, A-weighted, fS = 192 kHz
132
dB
EIAJ, A-weighted, fS = 44.1 kHz
132
Signal-to-noise ratio
EIAJ, A-weighted, fS = 96 kHz
132
dB
Signal-to-noise ratio
EIAJ, A-weighted, fS = 192 kHz
132
dB
DSD MODE DYNAMIC PERFORMANCE (1) (3) (44.1 kHz, 64 fS)
THD+N at FS
4.5 V rms
0.0005%
Dynamic range
–60 dB, EIAJ, A-weighted
128
dB
Signal-to-noise ratio
EIAJ, A-weighted
128
dB
ANALOG OUTPUT
Gain error
–6
±2
6
% of FSR
Gain mismatch, channel-to-channel
–3
±0.5
3
% of FSR
Bipolar zero error
At BPZ
–2
±0.5
2
% of FSR
Output current
Full scale (0 dB)
7.8
mA p-p
Center current
At BPZ
–6.2
mA
DIGITAL FILTER PERFORMANCE
De-emphasis error
±0.004
dB
FILTER CHARACTERISTICS-1: SHARP ROLLOFF
Pass band
±0.00001 dB
0.454 fS
Pass band
–3 dB
0.49 fS
Stop band
0.546 fS
Pass-band ripple
±0.00001
dB
Stop-band attenuation
Stop band = 0.546 fS
–130
dB
Delay time
55/fS
s
FILTER CHARACTERISTICS-2: SLOW ROLLOFF
Pass band
±0.04 dB
0.254 fS
Pass band
–3 dB
0.46 fS
Stop band
0.732 fS
Pass-band ripple
±0.001
dB
Stop-band attenuation
Stop band = 0.732 fS
–100
dB
Delay time
18/fS
s
(1) Filter condition:
THD+N: 20-Hz HPF, 20-kHz apogee LPF
Dynamic range: 20-Hz HPF, 20-kHz AES17 LPF, A-weighted
Signal-to-noise ratio: 20-Hz HPF, 20-kHz AES17 LPF, A-weighted
Channel separation: 20-Hz HPF, 20-kHz AES17 LPF
Analog performance specifications are measured using the System Two Cascade audio measurement system by Audio Precision in the averaging
mode.
(2) Dynamic performance and dc accuracy are specified at the output of the postamplifier as shown in Figure 34.
(3) Dynamic performance and dc accuracy are specified at the output of the postamplifier as shown in Figure 35.
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