th7122 Melexis Company, th7122 Datasheet - Page 28

• Manufacturer Part Number: th7122
• Description: Transceiver - 27 To 930mhz, Fsk/fm/ask, Multi-channel Lqfp32
• Manufacturer: Melexis Company

39010 07122
Rev. 008
Digital pin characteristics
Pull-down Resistor
pins IN_DTA , RE/SCLK,
TE/SDTA
Low level input leakage current
pins IN_DTA, ASK/FSK,
RE/SCLK, TE/SDTA, FS0/SDEN,
FS1/LD
High level input leakage current
pins ASK/FSK, FS0/SDEN,
FS1/LD
Analog pin characteristics
MOS switch On resistance
FSK_SW pin
MOS switch Off resistance
FSK_SW pin
Peak detector pull-up current
INT2/PDO pin
Peak detector leakage current
INT2/PDO pin
OA input offset voltage
Voltage threshold for high to low
LNA gain transition
GAIN_LNA pin
Voltage threshold for low to high
LNA gain transition
GAIN_LNA pin
RSSI characteristics
RSSI voltage at low IFA
input level
RSSI voltage at high IFA
input level
Parameter
R
I
I
R
R
I
I
V
V
V
V
V
Symbol
IL
IH
PU_PDO
L_PDO
OS
GAIN_HL
GAIN_LH
L_RSSI
H_RSSI
PD
ON
OFF
I
in Stand-alone user
mode
I
in Stand-alone user
mode
Transmit mode,
if Reg. DTAPOL = 0:
IN_DTA = 0
if Reg. DTAPOL = 1:
IN_DTA = 1
Transmit mode,
if Reg. DTAPOL = 0:
IN_DTA = 1
if Reg. DTAPOL = 1:
IN_DTA = 0
ASK Receive mode,
Reg. PKDET = 1
V
ASK Receive mode,
Reg. PKDET = 1
V
Receive mode
Receive mode,
Reg. LNACTRL = 0,
Reg. LNAHYST = 1
Receive mode,
Reg. LNACTRL = 0,
Reg. LNAHYST = 1
Receive mode,
V
(CW, 10.7MHz)
Receive mode,
V
(CW, 10.7MHz)
INL_FS1/LD
INH_FS1/LD
OUT_DEM
OUT_DEM
IN_IFA
IN_IFA
Page 28 of 44
Condition
= 100μV
= 100mV
> V
=< V
only
only
INT2/PDO
INT2/PDO
FSK/FM/ASK Transceiver
Min
-1.1
-25
1.0
1.3
70
-2
-2
1
0.95
1.95
Typ
120
1.3
1.6
10
27 to 930MHz
TH7122
Max
220
1.6
1.9
25
30
2
2
Data Sheet
June/07
Unit
MΩ
MΩ
mA
mV
kΩ
μA
μA
μA
V
V
V
V