TSH512(2001) 데이터 시트보기 (PDF) - STMicroelectronics
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TSH512
(Rev.:2001)
(Rev.:2001)
STMicroelectronics
TSH512 Datasheet PDF : 19 Pages
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TSH512
ELECTRICAL CHARACTERISTICS
Vcc = 2.7V, Tamb = 25°C, faudio = 1 kHz, fcarrier = 2.8 MHz (unless otherwise specified)
Symbol
Parameter
Test condition
Min Typ Max
Overall Circuit
Current consumption,
ICC_TOT TX1 and TX2 are on.
TX1 on, TX2 on,
MIC-BIAS1 and
MIC-BIAS2 not used:
VOX-MUTE=1, output
buffers on
Current consumption
VOX-MUTE=0, output
buffers off
TX1 on, TX2 off,
MIC-BIAS1 and
MIC-BIAS2 not used:
ICC_SBY with TX2 in stand-by:
SBY (pin5) active
VOX-MUTE=1, output
buffers on
VOX-MUTE=0, output
buffers off
LNA Sections (for TX1 and TX2)
GBP LNA
RinLNA
THDLNA
Gain Band Product
Input Resistance on positive input:
(LNA-INP1 pin 12 or
LNA-INP2 pin 44)
Total Harmonic Distortion
No external load
GLNA=0dB VoutLNA
=700mVPP
En Equivalent Input Noise Voltage
Automatic Level Control (ALC) Section
GLNA=40dB, at f=1kHz
Rs=390Ω, Rfeedback=
39kΩ
GALC
Voltage Gain
Regulated Output Level
VALC_OUT (At positive input of the PEA amplifier)
600
Pre-Emphasis Amplifier (PEA) Section
GBP PEA
VOpp-PEA
Gain Band Product
No Load
(PEA-OUT1 pin17 or PEA-OUT2 pin39)
Output voltage
RL = 22kΩ
Audio LNA+ALC+PEA sections
THDALC
Total Harmonic Distorsion
in linear region on PEA-OUT1 pin17 or
PEA-OUT2 pin 39
GLNA = 0 dB, f =1kHz
VinALC < 25mVrms
(-30dBu)
RL = 22 kΩ tied to GND
THDAGC
Total Harmonic Distorsion in compres-
sion region
(Vin)ALC = 36mVrms
(-27dBu)
(Vin)ALC= 100mVrms
(-18dBu)
RL = 22 kΩ tied to GND
ΦΜPEA
Phase Margin at
PEA-OUT1 pin 17 or
PEA-OUT2 pin 39
RL = 22 kΩ
LNA and PEA at unity
gain
Vin = 40mV
16
11
10
7
7
30
0.01
6
20
710
9
550
0.05
1.3
3
70
18.6
12.8
11.5
8
0.05
800
0.15
1.7
4
Unit
mA
mA
mA
mA
MHz
kΩ
%
nV/√Hz
dB
mVpp
MHz
mVpp
%
%
%
°
7/19
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