TH7111 Datasheet, PDF (9/20 Pages) List of Unclassifed Manufacturers – FSK /FM/ASK Receiver

TH7111
868/915MHz
FSK/FM/ASK Receiver
Technical Data
Mode Configurations
ENRX
ENRO
Mode
0
0
SBY
0
1
RO only
1
0
ON
1
1
ON
Note: ENRX and ENRO are pulled down internally
Description
standby mode
only reference oscillator active
entire chip active
entire chip active
Second Mixer Input
IN_MIX2V
External LO2
Ext. pull-down res. (15 kΩ)
N/C
SW_MIX2
0
0
1
Mode
double conversion with external LO2
single conversion
double conversion with internal LO2
LNA Gain Control
V_{GAIN_LNA}
Mode
Description
< 0.8 V
HIGH GAIN
LNA set to high gain by voltage at GAIN_LNA
> 1.4 V
LOW GAIN
LNA set to low gain by voltage at GAIN_LNA
Note: hysteresis between gain modes to ensure stability
Absolute Maximum Ratings
Parameter
Supply voltage
Input voltage
Input RF level
Storage temperature
Electrostatic discharge
Symbol
V_cc
V_IN
P_imax
T_STG
ESD
Condition / Note
no damage
human body model,
MIL STD 833D
method 3015.7, all pins
except OUT_IFA
pin OUT_IFA
Normal Operating Conditions
Parameter
Supply voltage for double conv.
Supply voltage for single conv.
Operating temperature
Input frequency
Frequency deviation
FSK data rate
FM bandwidth
ASK data rate
Symbol
V_{cc, DC}
V_{cc, SC}
T_a
f_i
∆f
R_FSK
f_m
R_ASK
Condition
at FM or FSK
NRZ
NRZ
Min
0
- 0.3
-40
-500
-500
Min
2.5
3.3
-40
800
±5
Max
7.0
V_CC+0.3
10
+125
+500
+250
Max
5.5
5.5
+85
930
±120
40
15
80
Unit
V
V
dBm
°C
V
V
Unit
V
V
ºC
MHz
kHz
kbit/s
kHz
kbit/s
TH7111 Data Sheet
3901007111
Page 9 of 20
Nov. 2001
Rev. 005