u3742bm ATMEL Corporation, u3742bm Datasheet - Page 27

• Manufacturer Part Number: u3742bm
• Description: Uhf Ask/fsk Receiver
• Manufacturer: ATMEL Corporation

Electrical Characteristics (Continued)
All parameters refer to GND, T
wise specified. (V
Electrical Characteristics
All parameters refer to GND, T
wise specified. (V
4735A–RKE–11/03
Parameter
Equivalent
acknowledge
pulse: E_Ack
(Figure 24)
Parameters
Current consumption
LNA Mixer
Third-order intercept point
LO spurious emission at RF
Noise figure LNA and mixer (DSB)
LNA_IN input impedance
1 dB compression point
(LNA, mixer, IF amplifier)
Maximum input level
Equivalent
time window
(Figure 24)
OFF-bit
programming
window
(Figure 21)
Local Oscillator
Operating frequency range VCO
Phase noise VCO/LO
Spurious of the VCO
VCO gain
Test Condition
S
S
= 5 V, T
= 5 V, T
In
amb
amb
amb
amb
= 25 ° C)
= 25°C)
Symbol
= -40 ° C to +105 ° C, V
= -40°C to +105°C, V
t
t
t
10
8
9
Test Conditions
Sleep mode
(XTO and polling logic active)
IC active
(startup-, bit check-, receiving mode)
pin DATA = H
LNA/mixer/IF amplifier
input matched according to Figure 6
Input matched according to Figure 6,
required according to I-ETS 300220
Input matching according to Figure 6
at 433.92 MHz
at 315 MHz
Input matched according to Figure 6,
referred to RF
Input matched according to Figure 6,
BER £ 10
ASK mode
f
at 1 MHz
at 10 MHz
at ±f
osc
= 432.92 MHz
XTO
6.76438 Mhz Oscillator
Min.
-3
,
in
(Mode 1)
Typ.
265
534
930
S
S
= 4.5 V to 5.5 V, f
= 4.5 V to 5.5 V, f
Max.
Min.
4.90625 Mhz Oscillator
(Mode 0)
Typ.
Symbol
261
526
916
Zi
0
0
P
IS
L (fm)
K
IP
IIP3
f
= 433.92 MHz and f
= 433.92 MHz and f
IS
IS
LNA_IN
in_max
NF
VCO
LORF
VCO
1db
off
on
Max.
Min.
299
Min.
1.0 || 1.56
Variable Oscillator
1.3 || 1.0
0
0
Typ.
-113
190
190
-28
-73
-40
-93
-55
7.0
= 315 MHz, unless other-
= 315 MHz, unless other-
449.5 ´ T
7
128 ´ T
258 ´ T
Typ.
U3742BM
Clk
Clk
Clk
Max.
-110
350
449
8.6
-57
-28
-20
-90
-47
Max.
k W || pF
k W || pF
dBC/Hz
dBC/Hz
MHz/V
dBm
dBm
dBm
dBm
dBm
MHz
Unit
dBC
mA
µA
dB
Unit
µs
µs
µs
27