TSH512 View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'TSH512' PDF : 32 Pages View PDF
Electrical characteristics
TSH512
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
Audio LNA+ALC+PEA sections
THDALC
THDAGC
ΦΜPEA
GLNA = 0 dB, f = 1 kHz
Total harmonic distortion in (Vin)ALC < 25 mVrms (-30 dBu)
linear region on PEA-OUT1 RL = 22 kΩ tied to GND
pin17 or PEA-OUT2 pin 39
-40° C < Tamb < +85° C
(Vin)ALC = 36 mVrms (-27 dBu)
(Vin)ALC= 100 mVrms (-18 dBu)
Total harmonic distortion in RL = 22 kΩ tied to GND
compression region
-40° C < Tamb < +85° C
(Vin)ALC = 36 mVrms (-27 dBu)
(Vin)ALC= 100 mVrms (-18 dBu)
Phase margin at
PEA-OUT1 pin 17 or
PEA-OUT2 pin 39
RL = 22 kΩ
LNA and PEA at unity gain
Vin = 40 mV
Microphone biasing section
VMIC-BIAS
Microphone biasing voltage IMIC-BIAS = 2.5 mA
(Section 5.3 on page 20) -40° C < Tamb < +85° C
ΔVMIC-BIAS
VMIC-BIAS temperature
coefficient
Over temp. range:
[0, 70° C]
[-40, 85° C]
IMIC-BIAS = 2.5 mA
IMIC-BIAS MIC-BIAS current capability Over VCC range [2.3 V–5.5 V]
PSRRMIC-BIAS
Power supply
of MIC-BIAS
rejection
ratio
At 1 kHz and Vripple = 25 mVRMS
enMIC-BIAS
Equivalent input noise of
MIC-BIAS
Vox operated switch (VOX) section
VCC = 2.7 V
VCC = 5.0 V
IVOX-TIMER
Monostable current source
(VOX-TIMER pin 29)
VCC = 2.7V
VTHVOX-TIMER
Threshold voltage of the
Monostable (time constant)
VMUTE_L
Low level output voltage
(VOX-MUTE pin 27)
VMUTE_H
High level output voltage
(VOX-MUTE pin 27)
RL = 2 kΩ
-40° C < Tamb < +85° C
RL = 2 kΩ
-40° C < Tamb < +85° C
0.05 0.15
%
0.25
1.3 1.7
3
4
%
2.5
5.3
70
°
2.15 2.25 2.35
V
2.14
2.36
260
460
2.5
50
22
42
ppm/°C
mA
dB
nV/√Hz
5
µA
1.4
V
VCC-0.3
VCC-
0.32
0.2
V
0.2
V
8/31
Doc ID 8120 Rev 7
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