參數(shù)資料
型號(hào)： TLV320DAC32IRHBR
廠商： TEXAS INSTRUMENTS INC
元件分類： DAC
英文描述： SERIAL INPUT LOADING, DAC WITH PROGRAMMABLE PLL, PQCC32
封裝： 5 X 5 MM, GREEN, PLASTIC, QFN-32
文件頁數(shù)： 56/69頁
文件大?。?/td> 1242K
代理商： TLV320DAC32IRHBR
SLAS506B – NOVEMBER 2006 – REVISED DECEMBER 2008........................................................................................................................................ www.ti.com
ELECTRICAL CHARACTERISTICS (continued)
At 25C, AVDD_DAC, DRVDD, IOVDD = 3.3 V, DVDD = 1.8 V, Fs = 48 kHz, 16-bit audio data (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Maximum
programmable output
9
dB
level control gain
Programmable output
level control gain step
1
dB
size
RL = 32 , 0.1% THD
25
PO
Maximum output power
mW
RL = 16 , 0.1% THD
50
SNR
Signal-to-noise ratio(2)
85
94
dB
–79
–60
Total harmonic
1-kHz Output, PO = 26 mW, RL = 16
dB%
distortion
0.011
Channel separation
1 kHz, 0-dB Input
85
dB
Power supply rejection
1 KHz, 100 mVpp on AVDD_DAC, DRVDD1/2
52
dB
ratio
Mute attenuation
1-kHz Output
107
dB
DIFFERENTIAL STEREO HEADPHONE DRIVER
0-dB Gain to high power outputs. Output
0-dB full-scale output
common-mode voltage setting = 1.65 V,
1.27
V
voltage
Differential output configuration(3)
SNR
Signal-to-noise ratio(4)
95
dB
DIFFERENTIAL SPEAKER DRIVER
DRVDD = 3.6 V, HPLCOM = 1.8 V,
PO
Maximum output power
0.5
W
HPLCOM/HPRCOM Gain = 5, RL = 8
0-dB Full-scale output
0-dB Gain for HPLCOM/HPRCOM,
1.15
Vrms
voltage
Output common-mode voltage setting = 1.65 V, RL = 8
Total harmonic
Fs = 48 kHz, 0-dB Full-scale signal,
–71
dB
distortion
0-dB Gain at HPLCOM/HPRCOM, RL = 8
DIGITAL I/O
0.3
VIL
Input low level
IIL = +5 A
–0.3
V
IOVDD
0.7
IIH = +5 A, IOVDD > 1.6 V
IOVDD
VIH
Input high level(5)
V
IIH = +5 A, IOVDD < 1.6 V
IOVDD
0.1
VOL
Output low level
IIH = 2 TTL loads
V
IOVDD
0.8
VOH
Output high level
IOH = 2 TTL loads
V
IOVDD
SUPPLY CURRENT
AVDD_DAC+DRVDD
3.99
Current
DVDD
0.025
mA
LINEL/R only routed to single-ended
stereo headphones, DAC = off, Analog
IOVDD
0.001
Headphone
Mixer = on, PLL = off, LDO = off,
amplifier
AVDD_DAC+DRVDD
13.17
analog mixer enabled, no signal
applied
Power
DVDD
0.045
mW
IOVDD
0.003
(2)
Ratio of output level with a 1-kHz full-scale input, to the output level playing an all-zero signal, measured , A-weighted over a 20-Hz to
20-kHz bandwidth.
(3)
Unless otherwise noted, all measurements use output common-mode voltage setting of 1.35 V, 0-dB output level control gain, 16-
differential load.
(4)
Ratio of output level with a 1-kHz full-scale input, to the output level playing an all-zero signal, measured , A-weighted over a 20-Hz to
20-kHz bandwidth.
(5)
When IOVDD < 1.6 V, minimum VIH is 1.1 V.
6
Copyright 2006–2008, Texas Instruments Incorporated
Product Folder Link(s): TLV320DAC32
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