TSH511C STMicroelectronics, TSH511C Datasheet - Page 8

• Manufacturer Part Number: TSH511C
• Description: HiFi stereo/mono infrared receiver Stereo sub-carrier demodulator
• Manufacturer: STMicroelectronics

TSH511
8/18
Amplifier (AMP) Section
Limitor (LIM) Section
FM Demodulator Section
Squelch Section
I
I
Z
Z
MUTE_SINK
V
MUTE_SOU
P
Symbol
Z
AMP_OUT
BW
DEM_OUT
V
Z
LIM_OUT
V
G
1dBAMP
AMP_IN
V
Z
G
N_HYS
LIM_IN
ATT
RCE
N_TH
N_IN
DEM
AMP
LIM
AMP
Amplifier Voltage Gain
Input impedance defined as
R
Output impedance
1dB compression point
-3dB AMP Bandwidth
Voltage gain
Input impedance defined as
R
Output Voltage
Output voltage
Output impedance
Audio attenuation on each receiver
when audio buffers are muted.
Noise Amplifier Input impedance
Comparator threshold
Comparator hysteresis
Current sinked on pin 25 to discharge
C
trolling the attenuation from ON to OFF
states of audio buffers.
Current sourced on pin 25 to charge
C
trolling the attenuation from OFF to ON
states of audio buffers.
AMP_IN
LIM_IN
MUTE
MUTE
capacitor: ramp generator con-
capacitor: ramp generator con-
in parallel with C
in parallel with C
Parameter
LIM_IN
AMP_IN
ZL=2 k
R
C
ZL = 2 k
ZL = 2 k
f
ZL = 2 k
ZL=15k
R
C
ZL = 15 k tied to GND
+-75 kHz FM deviation
typical application schematic
ZL = 4 k
RX1 and RX2 audio buff-
ers muted
ZL = 16
buffers
from MUTED to
UNMUTED state,
R
f
R
f
Voltage on pin 25 = 1.7V
Voltage on pin 25 = 1.7V
carrier
IN
IN
AMP_IN
AMP_IN
LIM_IN
LIM_IN
MUTE
MUTE
= 100 kHz
= 100 kHz
Test condition
=10 MHz
= 22 k
= 22 k
f
tied to GND
carrier
on both audio
=10 MHz
Min
220
700
16
50
55
Typ
350
560
380
170
800
100
20
10
11
54
15
65
24
14
2
2
2
9
1
Max
900
60
mV
mV
mV
mV
mV
MHz
Unit
dB
k
pF
dB
k
pF
dB
k
µA
µA
RMS
RMS
RMS
RMS
pp