參數(shù)資料
型號(hào)： TLV320AIC3120IRHBR
廠商： TEXAS INSTRUMENTS INC
元件分類： 音頻／視頻放大
英文描述： AUDIO AMPLIFIER, PQCC32
封裝： 5 X 5 MM, GREEN, PLASTIC, QFN-32
文件頁數(shù)： 118/150頁
文件大小： 1507K
代理商： TLV320AIC3120IRHBR
www.ti.com
SLAS653 – FEBRUARY 2010
Electrical Characteristics (continued)
At 25°C, AVDD = HPVDD = IOVDD = 3.3 V, SPKVDD = 3.6V, DVDD = 1.8 V, fS (audio) = 48 kHz, CODEC_CLKIN = 256 ×
fS, PLL = Off, VOL/MICDET pin disabled (unless otherwise noted)
PARAMETER
TEST CONDITIONS
MIN
TYP
MAX
UNIT
DAC Digital Interpolation Filter Characteristics
See Section 5.6.1.4 for DAC interpolation filter characteristics.
DAC Output to Class-D SPEAKER OUTPUT; Load = 4
(Differential), 50 pF
SPKVDD 3.6 V, BTL measurement, DAC input = 0
dBFS, CM = 1.8 V, class-D gain = 6 dB, THD
≤ –16.5
2.3
dB
Output voltage
Vrms
SPKVDD = 3.6 V, BTL measurement, DAC input = –2
dBFS, CM = 1.8 V, class-D gain = 6 dB, THD
≤ –20
2.1
dB
SPKVDD = 3.6 V, BTL measurement, DAC input =
Output, common-mode
1.8
V
mute, class-D gain = 6 dB
SPKVDD = 3.6 V, BTL measurement, class-D gain =
SNR
Signal-to-noise ratio
6 dB, measured as idle-channel noise, A-weighted
88
dB
(with respect to full-scale output value of 2.3 Vrms)
SPKVDD = 3.6 V, BTL measurement, DAC input = –6
THD
Total harmonic distortion
–65
dB
dBFS, CM = 1.8 V, class-D gain = 6 dB
Total harmonic distortion +
SPKVDD = 3.6 V, BTL measurement, DAC input = –6
THD+N
–63
dB
noise
dBFS, CM = 1.8 V, class-D gain = 6 dB
SPKVDD = 3.6 V, BTL measurement, ripple on
PSRR
Power-supply rejection ratio(1)
–44
dB
SPKVDD = 200 mVp-p at 1 kHz
Mute attenuation
110
dB
SPKVDD = 3.6 V, BTL measurement, CM = 1.8 V,
1
class-D gain = 18 dB, THD = 10%
SPKVDD = 4.3 V, BTL measurement, CM = 1.8 V,
PO
Maximum output power
1.5
W
class-D gain = 18 dB, THD = 10%
SPKVDD = 5.5 V, BTL measurement, CM = 1.8 V,
2.5
class-D gain = 18 dB, THD = 10%
(1)
DAC to headphone-out PSRR measurement is calculated as PSRR = 20 × log(
ΔVHPOUT / ΔVHPVDD).
Copyright 2010, Texas Instruments Incorporated
ELECTRICAL SPECIFICATIONS
7
Product Folder Link(s): TLV320AIC3120
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