參數(shù)資料
型號(hào): TSC2111IRGZR
廠商: TEXAS INSTRUMENTS INC
元件分類: 音頻/視頻放大
英文描述: 0.4 W, 1 CHANNEL, AUDIO AMPLIFIER, QCC48
封裝: PLASTIC, QFN-48
文件頁數(shù): 56/99頁
文件大小: 1143K
代理商: TSC2111IRGZR
TSC2111
SLAS495A JUNE 2006 REVISED OCTOBER 2007
www.ti.com
6
ELECTRICAL CHARACTERISTICS (continued)
At +25
°C, AVDD1, AVDD2, DRVDD, IOVDD = 3.3 V, BVDD = 3.9 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
HEADSET MICROPHONE BIAS
Register 1DH/Page 2, D7D8=00
3.3
Voltage range
Register 1DH/Page 2, D7D8=01
2.5
V
Voltage range
Register 1DH/Page 2, D7D8=1X
2
V
217 Hz, 100 mV on AVDD1/2
55
PSRR
217 Hz, 100 mV on BVDD
77
dB
PSRR
1020 Hz, 100 mV on AVDD1/2
55
dB
1020 Hz, 100 mV on BVDD
77
Sourcing current
Voltage drop <25 mV
5
mA
HANDSET MICROPHONE BIAS
Voltage range
Register 1DH/Page 2, D6=0
2.5
V
Voltage range
Register 1DH/Page 2, D6=1
2
V
PSRR
217 Hz, 100 mV on AVDD1/2
55
dB
PSRR
1020 Hz, 100 mV on AVDD1/2
55
dB
Sourcing current
Voltage drop <25 mV
5
mA
DAC INTERPOLATION FILTER
Pass band
20
0.45Fs
Hz
Pass band ripple
±0.06
dB
Transition band
0.45Fs
0.55Fs
Hz
Stop band
0.55Fs
7.455Fs
Hz
Stop band attenuation
65
dB
Filter group delay
21/Fs
Sec
De-emphasis error
±0.1
dB
DAC HEADPHONE OUTPUT
Load = 16
(single-ended), 50 pF
Full-scale output voltage (0dB)
0.848
Vrms
Output common mode
1.5
V
SNR
Measured as idle channel noise, A-weighted
85
95
dBA
THD
1 dBFS Input, 0-dB gain
80
60
dB
PSRR
217 Hz, 100 mV on AVDD1/AVDD2(2)
65
dB
PSRR
1020 Hz, 100 mV on AVDD1/AVDD2(2)
65
dB
Interchannel isolation
Coupling from ADC to DAC
100
dB
Mute attenuation
120
dB
Maximum output power
Per channel
44
mW
Digital volume control
63.5
0
dB
Digital volume control step size
0.5
dB
Channel separation
Between SPK1 and SPK2
75
dB
(2) DAC PSRR measurement is calculated as:
PSRR
+ 20 log
10
VSIGsup
V
SPK1 2
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