TSH511C STMicroelectronics, TSH511C Datasheet - Page 6

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

TSH511
MULTIMEDIA APPLICATION: HEADSET SIDE
The TSH511 receives the HiFi stereo sound from the computer through 2.3 and 2.8 MHz stereo infrared
carriers. The access pins to the RF amplifiers allow the use of a 1.7 MHz reject filter to cancel the trans-
mitted signal of the microphone. The wide supply range (2.3 to 5.5 V) allows battery operation.
MULTIMEDIA APPLICATION: COMPUTER SIDE
In multimedia application, the TSH511 receives the voice of the user through the 1.7 MHz infrared carrier.
The standby pins can disable the unused receiver and audio amplifier to reduce the supply current.
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LED
LED
HiFi stereo Tx:
HiFi stereo Tx:
TSH511 & 512 supply:
TSH511 & 512 supply:
TSH511 & 512 supply:
2.3 & 2.8 MHz
2.3 & 2.8 MHz
TSH512
TSH512
TSH512
2.3 to 5.5V, 25 mA
2.3 to 5.5V, 25 mA
2.3 to 5.5V, 25 mA
LNA + ALC
LNA + ALC
LNA + ALC
MIC. BIAS
MIC. BIAS
MIC. BIAS
MIC. BIAS
MIC. BIAS
MIC. BIAS
LNA + ALC
LNA + ALC
LNA + ALC
mono Rx:
mono Rx:
Voice transmitted to the PC
Voice transmitted to the PC
Voice transmitted to the PC
1.7 MHz
1.7 MHz
buffer2
buffer2
buffer1
buffer1
SBY
SBY
Band-pass
Band-pass
Band-pass
VOX
VOX
VOX
1.7 MHz
1.7 MHz
1.7 MHz
TX2
TX2
TX2
TX1
TX1
TX1
TSH511 & 512 supply:
TSH511 & 512 supply:
TX2
TX2
TX1
TX1
VOX
VOX
2.3 to 5.5V, 24 mA
2.3 to 5.5V, 24 mA
filter
filter
filter
buffer2
buffer2
buffer2
buffer1
buffer1
buffer1
SBY
SBY
SBY
Vcc
Vcc
Vcc
TSH512
TSH512
LNA + ALC
LNA + ALC
LNA + ALC
LNA + ALC
Vcc
Vcc
Vcc
HiFi stereo from the PC:
HiFi stereo from the PC:
HiFi stereo from the PC:
LED
LED
LED
2x 20 mW /16
2x 20 mW /16
2x 20 mW /16
HiFi stereo
HiFi stereo
TSH511
TSH511
TSH511
buffer2
buffer2
buffer2
buffer1
buffer1
buffer1
Audio
Audio
Audio
Audio
Audio
Audio
photodiode
photodiode
Microphone Tx:
Microphone Tx:
Microphone Tx:
1.7 MHz
1.7 MHz
1.7 MHz
1.7 MHz
1.7 MHz
1.7 MHz
1.7 MHz
1.7 MHz
1.7 MHz
reject
reject
reject
reject
reject
reject
RX2
RX2
RX2
RX1
RX1
RX1
carrier
carrier
carrier
LNA
LNA
Voice from the headset microphone
Voice from the headset microphone
filter
filter
filter
filter
filter
filter
Band-pass
Band-pass
Band-pass
Band-pass
Band-pass
Band-pass
2.3 MHz
2.3 MHz
2.3 MHz
2.8 MHz
2.8 MHz
2.8 MHz
filter
filter
filter
filter
filter
filter
Band-pass
Band-pass
RX2
RX2
RX1
RX1
LNA
LNA
LNA
1.7 MHz
1.7 MHz
filter
filter
2.3 & 2.8 MHz
2.3 & 2.8 MHz
2.3 & 2.8 MHz
Vcc
Vcc
Stereo Rx:
Stereo Rx:
Stereo Rx:
TSH511
TSH511
photodiode
photodiode
photodiode
buffer2
buffer2
buffer1
buffer1
Audio
Audio
Audio
Audio