TH7122ENE Melexis Inc, TH7122ENE Datasheet - Page 29

• 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

6.4
6.5
all parameters under normal operating conditions, unless otherwise stated;
typical values at T
all parameters based on test circuits for FSK (Fig. 14 to 15) and ASK (Fig. 16 to 17), respectively;
39010 07122
Rev. 010
Channel
switching time
TX – RX switching time
Input sensitivity
ASK
Input sensitivity
FSK
Maximum input
signal
ASK
Maximum input
signal
FSK
Start-up time - ASK
Start-up time - FSK
Spurious emission
PLL Synthesizer Timings
AC Characteristics of the Receiver Part
Parameter
Parameter
a
wide band
narrow band
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
f
RF
RF
RF
RF
RF
RF
RF
RF
RF
RF
RF
RF
RF
RF
RF
RF
= 23 °C and V
= 433.92MHz
= 868.3MHz
= 433.92MHz
= 868.3MHz
= 433.92MHz
= 868.3MHz
= 433.92MHz
= 868.3MHz
= 433.92MHz
= 868.3MHz
= 433.92MHz
= 868.3MHz
= 433.92MHz
= 868.3MHz
= 433.92MHz
= 868.3MHz
CC
t
t
t
= 3 V;
P
P
P
P
P
P
P
P
t
t
P
SW_WB
SW_NB
TX_RX
on_ASK
on_FSK
Symbol
Symbol
minL_ASK
minH_ASK
minL_FSK
minH_FSK
maxL_ASK
maxH_ASK
maxL_FSK
maxH_FSK
spur_RX
Page 29 of 44
B
I
B
I
IF = 10.7MHz
B
BER ≤ 3⋅10
LNA @ low gain
B
BER ≤ 3⋅10
LNA @ high gain
B
Δf = ± 50 kHz
BER ≤ 3⋅10
LNA @ low gain
B
Δf = ± 50 kHz
BER ≤ 3⋅10
LNA @ high gain
LNA @ low gain
LNA @ high gain
LNA @ low gain
LNA @ high gain
from standby to receive
mode
from standby to receive
mode
referred to receiver
input
CP
CP
PLL
PLL
IF
IF
IF
IF
= 260µA
= 260µA
= 180kHz, f
= 180kHz, f
= 180kHz, f
= 180kHz, f
= 20kHz,
= 2kHz,
Condition
Condition
-3
-3
-3
-3
m
m
m
m
= 2kHz
= 2kHz
= 2kHz
= 2kHz
FSK/FM/ASK Transceiver
Min
Min
-107
-107
-105
-105
Typ
Typ
200
500
-96
-96
-87
-87
-10
-10
-20
-20
-10
-10
-20
-20
-54
1
1
1
27 to 930MHz
TH7122
Max
Max
1.5
1.5
Data Sheet
Feb/09
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
dBm
Unit
Unit
ms
ms
ms
µs
µs