KESRX01
ELECTRICAL CHARACTERISTICS D.C.
T
amb
= -40 to + 85°C, V
CC
= 4.75V to 7.0V. These characteristics are guaranteed by either production test or design. They
apply within the specified ambient temperature and supply voltage ranges unless otherwise stated.
Characteristic
Symbol
Min
Supply current
Supply current
(PLL powered down)
Power down pin input logic high
Power down pin input logic low
Peak detector source current
Peak detector leakage
Data output Logic High
Data output Logic Low
V
ih
Vil
I
pk
I
IK
V
oh
V
ol
0.7V
CC
0.3V
CC
V
CC
-0.5
V
EE
-0.5
500
250
V
CC
+0.5
V
EE
+0.5
V
V
µA
nA
V
V
IIoad = 10µA
lload = 10µA
I
CC1
I
CC2
Value
Typ
2.30
1.90
Max
3.00
2.60
Units
Conditions
mA
mA
Vcc = 5V, all
V
CC
= 5V, all
Electrostatic discharge (ESD) protection (human body model) 2KV minimum, all pins.
NOTES: Care must be taken not to power up the device with pins 7 and 8 shorted by a solder bridge, as operation with pin 7 grounded can damage
the device and result in low sensitivity.
ELECTRICAL CHARACTERISTICS A.C.
T
amb
= -40 to + 85°C, V
CC
= 4.75V to 7.0V. These characteristics are guaranteed by either production test or design. they
apply within the specified ambient temperature and supply voltage ranges unless otherwise stated.
Characteristic
Sensitivity See Note 1
Signal handling See Note 2
LNA input impedance
Parallel combination R
11
/C
11
Mixer input impedance
Parallel combination R
11
/C
11
Crystal oscillator input
impedance
Integrated IF filter -3dB low
pass cut off frequency
Spurious reverse isolation to
RFIN See Note 3
Adjacent channel rejection
See Note 4
Notes:
1. Sensitivity is defined as the minimum average signal level measured at the input necessary to achieve a bit error ratio of
10
-2
where the input signal is a return to zero pulse (RZ) with an average duty cycle of 50%. The RF input is assumed to
be matched into 50Ω.
Measured in test circuit Fig. 6 with data filter bandwidth of 5KHz as shown and for a 2Kbit/s, 50% duty cycle signal.
2. Signal handling is defined as the maximum input signal capable of being succcessfully de-modulated. It is assumed the
input is ASK modulated with an extinction ratio of a least 40dB. The combination of this specification together with the
sensitivity specification gives a minimum signal handling range of 76dB. The RF input is assumed to be matched into 50Ω.
Measured in test circuit Fig. 6. with data filter bandwidth of 5KHz as shown.
3. -67dBm in 50Ω measured with the RF input matching network.
4. Adjacent channel rejection is defined for an interfering tone (ACR) dB above threshold and 10MHz offset from the carrier giving a 3dB
reduction in sensitivity i.e. the interfering tone is 4.74mV (rms) @ Fc
±
10MHz and to achieve the specified sensitivity the wanted signal
will have to be increased to 2.2µV (rms)
5. Please refer to Smith charts Fig.8 through to 10 covering frequency range 250-500MHz.
Symbol
Min
-23.5
2.65//2.2
1.15//1.1
-0.77
IF
3dB
450
Value
Typ
-103
Units
Max
-100
dBm
dBm
3.61//2.2
1.21//1.62
KΩ//pF
KΩ//pF
KΩ
KHz
µV
(rms)
dB
Conditions
R
S
= 50Ω, 434MHz, 2KB/s
R
S
= 50Ω, 434MHz, 2KB/s
V
CC
= 5V; 25°C ambient; 434MHz
Also see note 5
V
CC
= 5V; 25°C ambient; 434MHz
Also see note 5
C5 = C4 = 18pF
All
R
S
= 500Ω
10MHz offset from receiver VCO
-1.8
550
100
-2.1
750
ACR
65
2
ZARLINK [ ZARLINK SEMICONDUCTOR INC ]
