TSH511 Datasheet, PDF (1/18 Pages) STMicroelectronics – HiFi stereo/mono infrared receiver Stereo sub-carrier demodulator

TSH511
HiFi stereo/mono infrared receiver
Stereo sub-carrier demodulator
s Supply voltage: 2.3V to 5.5V
s Carriers frequency range: 0.4 to 11 MHz
s Two FM receivers for stereo
s Integrated audio buffers
s Audio outputs: 20 mW into 16 ohms
s High sensitivity: 4µV @12dB SINAD
s Flexibility: access pins for each section
s Receiver 2 Standby for mono operation
DESCRIPTION
The TSH511 is a 0.4 to 11 MHz dual FM receiver.
This circuit offers the functions needed for a highly
sensitive infrared HiFi STEREO receiver.
Featuring high input sensitivity and high input dy-
namic range, each receiver integrates a RF
front-end LNA, an intermediate amplifier with 2 ex-
ternal filters, a voltage limiter, a quadrature FM de-
modulator, and finally an audio buffer.
The integrated audio buffers are able to drive di-
rectly a 16 ohms headphone with 20mW.
A SQUELCH circuit mutes both audio amplifiers.
Access pins to each section makes the TSH511
suited for a wide field of applications.
For MONO applications, the STANDBY pin en-
ables one receiver only, reducing the supply cur-
rent.
The TSH511 forms a chipset with the dual trans-
mitter TSH512.
APPLICATIONS
s Infrared HiFi stereo receiver
s Infrared Multimedia Headsets
s Stereo sub-carrier demodulator
s FM IF receiver systems
s Power Line Carrier Intercoms
ORDER CODE
Part Number
Temperature
Range
TSH511CF
TSH511CFT
-40°C to
+85°C
-40°C to
+85°C
Package
TQFP44
TQFP44
Conditionning Marking
Tray
TSH511C
Tape & reel TSH511C
PACKAGE
F
TQFP44
10 x 10 mm
PIN CONNECTION (top view)
44 43 42 41 40 39 38 37 36 35 34
1
2
3
amp.
4
5
LNA
6
7
8
9
amp.
10
11
33
32
Standby
limiter
FM demodulator
31
RX2
30
29
TSH511 ^Audio
28
buffers
27
RX1
limiter
Vref
FM demodulator
26
25
SQUELCH
24
23
12 13 14 15 16 17 18 19 20 21 22
December 2002
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