TSH511CF STMicroelectronics, TSH511CF Datasheet - Page 16

• Manufacturer Part Number: TSH511CF
• Description: IC RECEIVER DUAL FM 44-TQFP
• Manufacturer: STMicroelectronics

Specifications of TSH511CF

• Frequency: 2.3MHz and 2.8MHz
• Sensitivity: -95dBm
• Modulation Or Protocol: FM
• Applications: Infrared Headsets, Infrared Hi-Fi Stereo Transmitters
• Current - Receiving: 15mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 2.3 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-TQFP, 44-VQFP
• For Use With: 497-8516 - BLANK PCB W/ BOM FOR TSH511/12
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Memory Size: -
• Data Rate - Maximum: -
• Other names: 497-2322

Application information
Figure 23. Headset side block diagram
Computer side
Figure 24. Computer side block diagram
16/25
TSH511 & 512 supply:
TSH511 & 512 supply:
TSH511 & 512 supply:
LED
LED
TSH512
TSH512
TSH512
2.3 to 5.5V, 25 mA
2.3 to 5.5V, 25 mA
2.3 to 5.5V, 25 mA
HiFi stereo Tx:
HiFi stereo Tx:
LNA + ALC
LNA + ALC
LNA + ALC
MIC. BIAS
MIC. BIAS
MIC. BIAS
MIC. BIAS
MIC. BIAS
MIC. BIAS
LNA + ALC
LNA + ALC
LNA + ALC
2.3 & 2.8 MHz
2.3 & 2.8 MHz
In multimedia applications, the TSH511 receives the voice of the user through the 1.7MHz
infrared carrier. The standby pins can disable the unused receiver and audio amplifier to
reduce the supply current (see
Voice transmitted to the PC
Voice transmitted to the PC
Voice transmitted to the PC
mono Rx:
mono Rx:
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
VOX
VOX
TX1
TX1
filter
filter
filter
2.3 to 5.5V, 24 mA
2.3 to 5.5V, 24 mA
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
Figure
2x 20 mW /16 Ω
2x 20 mW /16 Ω
2x 20 mW /16 Ω
HiFi stereo
HiFi stereo
24).
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
LNA
LNA
Voice from the headset microphone
Voice from the headset microphone
1.7 MHz
1.7 MHz
1.7 MHz
reject
reject
reject
reject
reject
reject
RX2
RX2
RX2
RX1
RX1
RX1
carrier
carrier
carrier
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
1.7 MHz
1.7 MHz
filter
filter
LNA
LNA
LNA
Vcc
Vcc
TSH511
TSH511
2.3 & 2.8 MHz
2.3 & 2.8 MHz
2.3 & 2.8 MHz
Stereo Rx:
Stereo Rx:
Stereo Rx:
photodiode
photodiode
photodiode
buffer2
buffer2
buffer1
buffer1
Audio
Audio
Audio
Audio
TSH511