TH7111ENG Melexis Inc, TH7111ENG Datasheet - Page 10

• Manufacturer Part Number: TH7111ENG
• Description: IC RECEIVER FULL SIZE 44-LQFP
• Manufacturer: Melexis Inc

Specifications of TH7111ENG

• Rohs Status: RoHS non-compliant
• Frequency: 800MHz ~ 930MHz
• Sensitivity: -109dBm
• Data Rate - Maximum: 80 kbps
• Modulation Or Protocol: ASK, FM, FSK
• Applications: Alarm and Security Systems, RKE, TPMS
• Current - Receiving: 9.2mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Voltage - Supply: 2.5 V ~ 5.5 V
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-LQFP
• Features: -
• Memory Size: -
• Other names: TH7111

DC Characteristics
all parameters under normal operating conditions, unless otherwise stated;
typical values at T
AC System Characteristics
all parameters under normal operating conditions, unless otherwise stated;
all parameters based on test circuits for FSK (Fig. 2), FM (Fig. 4) and ASK (Fig. 5), respectively;
typical values at T
Notes: 1. desired signal with FSK/FM or ASK modulation, CW blocking signal
TH7111 Data Sheet
3901007111
Standby current
Total supply current at low gain
Total supply current at high gain
Opamp input offset voltage
Opamp input offset current
Opamp input bias current
RSSI voltage at low input level
RSSI voltage at high input level
Start-up time – fast mode
FSK/FM
Start-up time – slow mode
FSK/FM
Start-up time – ASK
Input sensitivity – FSK
(narrow band)
Input sensitivity – FSK
(wide band)
Input sensitivity – ASK
(narrow band)
Input sensitivity – ASK
(wide band)
Maximum input signal – FSK/FM P
Maximum input signal – ASK
Spurious emission
Image rejection
Blocking immunity
VCO gain
Charge pump current
Parameter
Parameter
a
a
= 23 °C and V
= 23 °C and V
cc
cc
= 3 V
= 3 V, RF at 868.3MHz, second IF at 10.7 MHz
I
I
I
V
I
I
V
V
T
T
T
P
P
P
P
P
P
K
I
SBY
cc, low
cc, high
offs
bias
CP
Symbol
Symbol
offs
RSSI, low
RSSI, high
fast
slow
ASK
min, n
min, w
minA, n
minA, w
max, FM
max, ASK
spur
P
P
VCO
imag
block
ENRX=0
ENRX=1,
LNA at LOW GAIN
ENRX=1,
LNA at HIGH GAIN
I
0.5 * (I
P
LNA at LOW GAIN
P
LNA at LOW GAIN
ENRX from 0 to 1,
ENRO = 1,
valid data at output
ENRX from 0 to 1,
ENRO = 0,
depends on ASK de-
tector time constant
and start-up mode,
valid data at output
B
BER
B
BER
B
BER
B
BER
BER
LNA at LOW GAIN
BER
LNA at LOW GAIN
OAP
valid data at output
f = 15kHz (FSK/FM)
f = 50kHz (FSK/FM)
f
i
i
IF2
IF2
IF2
IF2
block
= -65 dBm,
= -35 dBm,
Page 10 of 20
= 40kHz
= 150kHz
= 40kHz
= 150kHz
– I
> 2MHz, note 1
OAP
Condition
Condition
OAN
3 10
3 10
3 10
3 10
3 10
3 10
+ I
-3
-3
-3
-3
-3
-3
OAN
)
-100
1.25
Min
Min
-20
-50
6.0
7.5
0.5
FSK/FM/ASK Receiver
-109
-102
-108
-104
Typ
Typ
250
7.5
9.2
1.0
1.9
-10
65
57
60
0
TH7111
(or T
868/915MHz
R3 C13
Max
11.0
2.45
Max
100
100
T
-70
9.0
1.5
0.4
0.9
20
50
+
fast
slow
)
Nov. 2001
Rev. 005
MHz/V
dBm
dBm
dBm
dBm
dBm
dBm
dBm
Unit
Unit
mA
mA
mV
ms
ms
ms
nA
nA
nA
µA
dB
dB
V
V