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PDF TSH511C Data sheet ( Hoja de datos )
| Número de pieza | TSH511C | |
| Descripción | HiFi stereo/mono infrared receiver Stereo sub-carrier demodulator | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de TSH511C (archivo pdf) en la parte inferior de esta página. Total 18 Páginas | ||
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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
limiter
FM demodulator
RX2
Standby
32
31
30
TSH511
Audio
buffers
29
28
27
RX1
limiter
FM demodulator
Vref
26
SQUELCH
25
24
23
12 13 14 15 16 17 18 19 20 21 22
December 2002
1/18
1 page  
TSH511
INFRARED STEREO HEADPHONE APPLICATION
The right side of the figure shows the block-diagram of an infrared stereo receiver using the TSH511. The
sensitive LNA directly connected to the photodiode does not require an external pre-amplifier. After filter-
ing, the amplified signals are limited and demodulated with quadrature demodulators. The two integrated
audio buffers directly drive the stereo headphones. The audio power reaches 2x20mW in two 16Ω loads.
The built-in squelch function fades-out the audio when the incoming infrared signal is low. The standby in-
puts SBY1 and SBY2 enable only one receiver for the mono applications.
IR stereo HiFi transmitter
(Television)
IR stereo HiFi receiver
(Headphones)
Vcc: 2.3 to 5.5V
Current < 15 mA
Right
channel
LNA + ALC
Line inputs
Left
channel
LNA + ALC
TSH512
TX2
VOX
buffer2
SBY
TX1
buffer1
Power supply:
2.3 to 5.5V
Icc < 20 mA stereo
photodiode
Vcc
LNA
LED
Hi2F.i3s&te2re.8o:MHz
carriers
2.3 MHz
filter
RX2
TSH511
Audio
buffer2
20 mW / 16 Ω
RX1
filter
2.8 MHz
Audio
buffer1
20 mW / 16 Ω
5/18
5 Page 
TSH511
AUDIO BUFFERS
Output THD+N vs. Output Power (RL = 16 Ω)
10
V = 2.3V
CC
V = 2.7V
CC
V = 5.5V
CC
1
0.1
1
10
P (mW)
OUT-BUF
R
L
=
16
Ω
F = 1 kHz
BW = 30 kHz
100
Output THD+N vs. Output Power (RL = 32 Ω)
10
R
L
=
32
Ω
F = 1 kHz
BW = 30 kHz
V = 2.3V
CC
V = 2.7V
CC
1
0.1
1
V = 5.5V
CC
10 100
P (mW)
OUT-BUF
Output THD+N vs. Output Power (RL = 600 Ω)
Output THD+N vs. Output Power (RL = 16 Ω)
10
F = 20 kHz
1
F = 1 kHz
F = 20 Hz
0.1
1
R = 16 Ω
L
V = 2.7 V
CC
10 100
P (mW)
OUT-BUF
Output THD+N vs. Output Power (RL = 32 Ω)
10
F = 20 kHz
1
F = 1 kHz
F = 20 Hz
0.1
1
10
P (mW)
OUT-BUF
R = 32 Ω
L
V = 2.7 V
CC
100
Output THD+N vs. Output Power (RL = 600 Ω)
V = 2.3V
CC
1
V = 2.7V
CC
V = 5.5V
CC
R = 600 Ω
0.1
L
F = 1 kHz
BW = 30 kHz
0.1 1
P (mW)
OUT-BUF
10
10
F = 20 kHz
1
F = 20 Hz
F = 1 kHz
0.1
0.1
P (mW)
OUT-BUF
R
L
=
600
Ω
V = 2.7 V
CC
1
11/18
11 Page | ||
| Páginas | Total 18 Páginas | |
| PDF Descargar | [ Datasheet TSH511C.PDF ] | |
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