參數(shù)資料
型號： TSH512CYFT
廠商： STMICROELECTRONICS
元件分類： 消費家電
英文描述： SPECIALTY CONSUMER CIRCUIT, PQFP44
封裝： 10 X 10 MM, ROHS COMPLIANT, TQFP-44
文件頁數(shù)： 30/31頁
文件大?。?/td> 1350K
代理商： TSH512CYFT
Electrical characteristics
TSH512
8/31
Doc ID 8120 Rev 7
Audio LNA+ALC+PEA sections
THDALC
Total harmonic distortion in
linear region on PEA-OUT1
pin17 or PEA-OUT2 pin 39
GLNA = 0 dB, f = 1 kHz
(Vin)ALC < 25 mVrms (-30 dBu)
RL = 22 kΩ tied to GND
0.05
0.15
%
-40° C < Tamb < +85° C
0.25
THDAGC
Total harmonic distortion in
compression region
(Vin)ALC = 36 mVrms (-27 dBu)
(Vin)ALC= 100 mVrms (-18 dBu)
RL = 22 kΩ tied to GND
1.3
3
1.7
4
%
-40° C < Tamb <+85°C
(Vin)ALC = 36 mVrms (-27 dBu)
(Vin)ALC= 100 mVrms (-18 dBu)
2.5
5.3
ΦΜPEA
Phase margin at
PEA-OUT1 pin 17 or
PEA-OUT2 pin 39
RL =22kΩ
LNA and PEA at unity gain
Vin = 40 mV
70
°
Microphone biasing section
VMIC-BIAS
Microphone biasing voltage
IMIC-BIAS = 2.5 mA
2.15
2.25
2.35
V
-40° C < Tamb < +85° C
2.14
2.36
ΔVMIC-BIAS
VMIC-BIAS temperature
coefficient
Over temp. range:
[0, 70° C]
[-40, 85° C]
IMIC-BIAS = 2.5 mA
260
460
ppm/°C
IMIC-BIAS
MIC-BIAS current capability Over VCC range [2.3 V–5.5 V]
2.5
mA
PSRRMIC-BIAS
Power supply rejection ratio
of MIC-BIAS
At 1 kHz and Vripple = 25 mVRMS
50
dB
enMIC-BIAS
Equivalent input noise of
MIC-BIAS
VCC =2.7 V
VCC =5.0 V
22
42
nV/
√Hz
Vox operated switch (VOX) section
IVOX-TIMER
Monostable current source
(VOX-TIMER pin 29)
VCC = 2.7V
5
A
VTHVOX-TIMER
Threshold voltage of the
Monostable (time constant)
1.4
V
VMUTE_L
Low level output voltage
(VOX-MUTE pin 27)
RL = 2 kΩ
0.2
V
-40° C < Tamb <+85°C
0.2
VMUTE_H
High level output voltage
(VOX-MUTE pin 27)
RL = 2 kΩ
VCC-0.3
V
-40° C < Tamb <+85°C
VCC-
0.32
Table 4.
Electrical characteristics for VCC = 2.7 V, Tamb = 25° C, faudio = 1 kHz, fcarrier = 2.8 MHz
(unless otherwise specified) (continued) (1)
Symbol
Parameter
Test conditions
Min.
Typ.
Max.
Unit
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