參數(shù)資料
型號(hào)： TLV320AC57N
廠商： Texas Instruments, Inc.
英文描述： 3-V VOICE-BAND AUDIO PROCESSORS VBAPE
中文描述： 3伏的語(yǔ)音頻帶音頻處理器VBAPE
文件頁(yè)數(shù)： 4/46頁(yè)
文件大小： 452K
代理商： TLV320AC57N
SLAS428 AUGUST 2004
www.ti.com
4
ELECTRICAL CHARACTERISTICS
At +25
°
C, AVDD,DRVDD,IOVDD = 3.3 V, DVDD = 1.8 V, Int. Vref = 2.5 V, Fs (Audio) = 48 kHz, unless otherwise noted (continued)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNITS
DAC INTERPOLATION FILTER
Pass band
20
0.45 Fs
Hz
Pass band ripple
±
0.06
dB
Transition band
0.45 Fs
0.5501 Fs
Hz
Stop band
0.5501 Fs
7.455 Fs
Hz
Stop band attenuation
65
dB
Filter group delay
21/Fs
±
0.1
sec
Deemphasis error
dB
DAC LINE OUTPUT
1-kHz sine wave input, 48 ksps, output drivers
in low power mode, load = 10 k
, 10 pF
Full scale output voltage (0 dB)
By design, D10D9 =
00
in control register
06H/Page2 corresponding to 2-VPP output
swing
0.707
Vrms
Output common mode
By design, D10D9 =
00
in control register
06H/Page2 corresponding to 2-VPP output
swing
1.35
V
SNR
Measured as idle channel noise, A-weighted
85
97
dBA
THD
0-dB FS input, 0-dB gain
1 kHz, 100 mVpp on AVDD(2) VGND powered
down
95
dB
PSRR
56
dB
DAC HEADPHONE OUTPUT
1-kHz sine wave input, 48 ksps, output drivers
in high power mode, load = 16
, 10 pF
By design, D10D9 =
00
in control register
06H/Page2 corresponding to 2-VPP output
swing
Full scale output voltage (0 dB)
0.707
Vrms
SNR
Measured as idle channel noise, A-weighted
85
97
dBA
THD
1 dB FS input, 0-dB gain
1 kHz, 100 mVpp on AVDD(1) VGND powered
down
91
55
dB
PSRR
54
dB
Mute attenuation
121
dB
Maximum output power
D10D9 =
00
in control register 06H/Page2
30
mW
Digital volume control gain
63.5
0
dB
Digital volume control step size
0.5
dB
Channel separation
Between HPL and HPR
80
dB
DAC SPEAKER OUTPUT
Output driver in high power mode,
load = 8
,, connected between HPR and HPL
pins. D10D9 =
10
in control register
06H/Page2 corresponding to 2.402-VPP output
swing
Output power
0 dB input to DAC
325
mW
SNR
Measured as idle channel noise, A-weighted
102
dBA
THD
1 dB FS input, 0-dB gain
86
dB
6 dB FS input, 0-dB gain
88
dB
(1)DAC PSRR measurement is calculated as:
PSRR
20 log10
VSIGsup
VHPR L
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