參數資料
型號： 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： 96/150頁
文件大?。?/td> 1507K
代理商： TLV320AIC3120IRHBR
www.ti.com
SLAS653 – FEBRUARY 2010
3.2
Recommended Operating Conditions
over operating free-air temperature range (unless otherwise noted)
MIN
NOM
MAX
UNIT
AVDD(1)
Referenced to AVSS(2)
2.7
3.3
3.6
DVDD
Referenced to DVSS(2)
1.65
1.8
1.95
HPVDD
Power-supply voltage range
Referenced to HPVSS(2)
2.7
3.3
3.6
V
SPKVDD(1)
Referenced to SPKVSS(2)
2.7
5.5
IOVDD
Referenced to IOVSS(2)
1.1
3.3
3.6
Speaker impedance
Load applied across class-D output pins (BTL)
4
Headphone impedance
AC-coupled to RL
16
Analog audio full-scale input
VI
AVDD = 3.3 V, single-ended
0.707
VRMS
voltage
Mono line output load
AC-coupled to RL
10
k
impedance
MCLK(3)
Master clock frequency
IOVDD = 3.3 V
50
MHz
SCL
SCL clock frequency
400
kHz
TA
Operating free-air temperature
–40
85
°C
(1)
To minimize battery-current leakage, the SPKVDD voltage level should not be below the AVDD voltage level.
(2)
All grounds on board are tied together, so they should not differ in voltage by more than 0.2 V maximum for any combination of ground
signals. By use of a wide trace or ground plane, ensure a low-impedance connection between HPVSS and DVSS.
(3)
The maximum input frequency should be 50 MHz for any digital pin used as a general-purpose clock.
3.3
Electrical Characteristics
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
INTERNAL OSCILLATOR—RC_CLK
Oscillator frequency
8.2
MHz
VOLUME CONTROL PIN (ADC); VOL/MICDET Pin Enabled
VOL/MICDET pin configured as volume control (page
0.5 ×
Input voltage range
0 / register 116, bit D7 = 1 and page 0 / register 67,
0
V
AVDD
bit D7 = 0)
Input capacitance
2
pF
Volume control steps
128
Steps
Copyright 2010, Texas Instruments Incorporated
ELECTRICAL SPECIFICATIONS
5
Product Folder Link(s): TLV320AIC3120
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