參數(shù)資料
型號： TPS65950ZXNT
廠商： TEXAS INSTRUMENTS INC
元件分類： 消費家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PBGA209
封裝： 7 X 7 MM, 0.40 MM PITCH, PLASTIC, BGA-209
文件頁數(shù)： 136/167頁
文件大?。?/td> 2566K
代理商： TPS65950ZXNT
TPS65950
Integrated Power Management/Audio Codec
SWCS032 – OCTOBER 2008
www.ti.com
Table 6-3. Headset Output Characteristics
Parameter
Test Conditions
Min(1)
Typ(2)
Max(3)
Unit
Load impedance
14
16
100
pF
Gain range (4)
Audio path
–92
30
dB
Voice path
–66
30
Absolute gain error
–1
1
dB
At 0.53 Vrms differential output voltage
17.56
mW
Maximum output power
Load impedance = 16
Peak-to-peak output voltage (0 dBFs)
Default gain (5)
1.5
VPP
Single-Ended Mode Ac-Coupled
Total harmonic distortion
At 0 dBFs
–80
–75
dB
Default gain (5)
At –6 dBFs
–74
–69
Load = 16
At –20 dBFs
–70
–65
At –60 dBFs
–30
–25
Idle channel noise
Default gain (5)
–90
–85
dB
(20 Hz to 20 kHz, A-weighted)
Load = 16
SNR (A-weighted over 20-kHz bandwidth)
At 0 dBFs
82
86
dB
Output PSRR (for all gains)
20 Hz to 4 kHz
90
dB
20 Hz to 20 kHz
70
Crosstalk between right and left channels
–60
dB
Single-Ended Mode (Pseudo-Ground Provided on HSOVMID)
Total harmonic distortion
At 0 dBFs
–75
–70
dB
Default gain (5)
At –6 dBFs
–74
–69
Load = 16
At –20 dBFs
–70
–65
At –60 dBFs
–30
–25
Idle channel noise
Default gain (5)
–90
–85
dB
(20 Hz to 20 kHz, A-weighted)
Load = 16
Output PSRR (for all gains)
20 Hz to 4 kHz
85
dB
20 Hz to 20 kHz
65
(1)
Min = Minimum value
(2)
Typ = Typical value
(3)
Max = Maximum value
(4)
Audio digital filter = –62 to 0 dB (1-dB steps) and 0 to 12 dB (6-dB steps)
Voice digital filter = –36 to 12 dB (1-dB steps)
ARXPGA (volume control) = –24 to 12 dB (2-dB steps)
Output driver = –6, 0, 6 dB
(5)
The default gain setting assumes the ARXPGA has 0 dB gain setting (volume control) and output driver at 0 dB gain setting.
70
Audio/Voice Module
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