TH7122ENE Melexis Inc, TH7122ENE Datasheet - Page 9

• Manufacturer Part Number: TH7122ENE
• Description: IC TXRX 930MHZ FSK/FM/ASK 32LQFP
• Manufacturer: Melexis Inc

Specifications of TH7122ENE

• Frequency: 300MHz ~ 930MHz
• Data Rate - Maximum: 115Kbps
• Modulation Or Protocol: ASK, FM, FSK
• Applications: Alarm and Security Systems, RKE, TPMS
• Power - Output: -10dBm ~ 11dBm
• Sensitivity: -105dBm
• Voltage - Supply: 2.2 V ~ 5.5 V
• Current - Receiving: 14mA
• Current - Transmitting: 23mA @ 10dBm
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 32-LQFP
• Transmitting Current: 12mA
• Data Rate: 115Kbps
• Frequency Range: 300MHz To 930MHz
• Modulation Type: AM, FM, FSK
• Sensitivity Dbm: -105dBm
• Rf Ic Case Style: LQFP
• No. Of Pins: 32
• Supply Voltage: RoHS Compliant
• Output Power: 10dBm
• Rohs Compliant: Yes
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Memory Size: -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: TH7122.3; TH7122ENETR

39010 07122
Rev. 010
Pin No.
27
28
26
29
30
31
32
GAIN_LNA
OUT_LNA
VEE_LNA
OUT_MIX
IN_LNA
VEE_IF
IN_MIX
Name
I/O Type
ground
ground
output
output
input
input
input
IN_MIX
30
GAIN_LNA
IN_LNA
26
OUT_MIX
Functional Schematic
VEE
29
32
Page 9 of 44
210
VCC
VEE
LO
3.8k
VEE
bias
120
VEE
VCC
100
37
VCC
VEE
VEE
0.8p
VEE
OUT_LNA
28
bias
FSK/FM/ASK Transceiver
ground of LNA and PA
LNA open-collector output,
connection to external LC
tank at RF
LNA input, single-ended
LNA gain control input
mixer input, approx. 200Ω
single-ended
ground of IFA, Demodulator,
OA1 and OA2
mixer output, approx. 330Ω
single-ended
Description
27 to 930MHz
TH7122
Data Sheet
Feb/09