srf-2724cs RF Micro Devices, srf-2724cs Datasheet - Page 3

• Manufacturer Part Number: srf-2724cs
• Description: 2.4ghz Low-if 1.5mbps Fsk Transceiver
• Manufacturer: RF Micro Devices

Prelim DS090410
Receiver
Receiver input impedance
Receiver noise figure
Data Rate
Input Sensitivity
Bandwidth
Maximum RX RF input
Receiver Input IP3
LO leakage at RX1
Mixer Image Rejection Ratio
Adjacent channel rejection
IF Filters
IF filter center frequency
IF filter 3dB bandwidth
Limiter, AGC, and FMD Demodu-
Recovery from overload
Eb/No
Co-Channel, 0.1% BER
Quiescent voltage at AOUT
Output voltage swing AOUT
AOUT open-drain voltage
RSSI Performance
RSSI rise time. No Signal to -
RSSI fall time, <-15dBm to No Sig-
RSSI sensitivity
RSSI maximum voltage
RSSI midrange voltage
RSSI minimum voltage
RSSI maximum voltage (clipped)
Transmit RF Mixer
Output power, single ended
Output power, differential
Output impedance
lator
15dBm into the IF mixer
nal into the IF mixer
Parameter
7628 Thorndike Road, Greensboro, NC 27409-9421 · For sales or technical
support, contact RFMD at ([phone] or [e-mail].
Proposed
Min.
0.55
-82
1.8
1.4
1.6
+5
28
-4
-3
-1
Specification
2.2 + j0
12 + j0
1.536
1.024
1405
Typ.
16.5
10.5
10.5
1.95
770
-90
-15
-60
4.5
3.0
2.3
1.7
-81
1.1
35
31
36
36
75
6
5
1
3
Max.
1.1
0.4
12
42
20
5
6
mV/dB
Mbps
Unit
dBm
dBm
dBm
dBm
dBm
dBm
MHz
dBm
dBm
kHz
kHz
V
mV
dB
dB
dB
dB
dB
dB
dB
μs
μs
μs
Ω
Ω
V
V
V
V
V
PP
VCCA=VDD=3.3V, T
Data Rate=1.536Mbps, 13kHz Loop Filter as
shown in Figure 1
f
f
FSK modulation, f
<12.5% CER at 1.536Mchip/s
<0.1% BER at 1.536Mbps
3dB Bandwidth
<12.5% CER at 1.536Mchip/s
<0.1% BER at 1.536Mb/s
Test tones 2 and 4 channels away
Measured at 3.5MHz offset
-80dBm wanted signal <10
2GFSK modulated interferer with a 1.5MHz -
20dBc bandwidth
1 channel away
2 channels away
3 or more channels away
After Automatic Filter Alignment
After Automatic Filter Alignment
From +15dBm at input
For 0.1% BER
-80dBm, modulated with 1.536Mbps GFSK,
BT=0.5, PRBS data
I
20pF load, 20% to 80%
20pF load, 20% to 80%
(V
See Figure 3
-40dBm into RXI
No signal into RXI
-10dBm into RX1
TRXO or TRXOB, f
P
TRXO or TRXOB, f
C
C
O
(TRXO, TRXOB)
=2445MHz
=2445MHz
=100μA, TPD mode
-40dBm
SRF-2724CS
- V
-60dBm
, f
C
=2.445GHz
C
C
Condition
DEV
)/20dB
=2.445GHz
=2.445GHz
A
=25°C, f
=±512kHz
-3
BER. Single
REF
=6.144MHz,
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