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BCM20705 Datasheet, PDF (53/67 Pages) Cypress Semiconductor – Single-Chip Bluetooth Transceiver and Baseband Processor
BCM20705 Data Sheet
RF Specifications
Table 19: Transmitter RF Specifications a, b
Parameter
Conditions
Minimum Typical
General
Frequency range
–
Class1: GFSK Tx power c
–
Class1: EDR Tx power d
–
Class 2: GFSK Tx power
–
Power control step
–
2402
–
6.5
10
4.5
8
–1.5
2
2
4
Modulation Accuracy
/4-DQPSK Frequency Stability –
/4-DQPSK RMS DEVM
–
/4-QPSK Peak DEVM
–
/4-DQPSK 99% DEVM
–
8-DPSK frequency stability
–
8-DPSK RMS DEVM
–
8-DPSK Peak DEVM
–
8-DPSK 99% DEVM
–
–10
–
–
–
–
–
–
–
–10
–
–
–
–
–
–
–
In-Band Spurious Emissions
+500 kHz
–
1.0 MHz < |M – N| < 1.5 MHz
–
1.5 MHz < |M – N| < 2.5 MHz
–
|M – N| > 2.5 MHz
–
–
–
–
–
–
–
–
–
Out-of-Band Spurious Emissions
30 MHz to 1 GHz
–
1 GHz to 12.75 GHz
–
1.8 GHz to 1.9 GHz
–
5.15 GHz to 5.3 GHz
–
–
–
–
–
–
–
–
–
GPS Band Noise Emission (without a front-end band pass filter)
1572.92 MHz to 1577.92 MHz –
–
–150
Out-of-Band Noise Emissions (without a front-end band pass filter)
65 MHz to 108 MHz
FM Rx
–
746 MHz to 764 MHz
CDMA
–
869 MHz to 960 MHz
CDMA
–
925 MHz to 960 MHz
EDGE/GSM
–
1805 MHz to 1880 MHz
EDGE/GSM
–
1930 MHz to 1990 MHz
PCS
–
2110 MHz to 2170 MHz
WCDMA
–
–145
–145
–145
–145
–145
–145
–145
a. All specifications are for industrial temperatures. For details, see Table 17 on page 49.
b. All specifications are single-ended. Unused input are left open.
c. +10 dBm output for GFSK measured with VDDTF = 2.9 V.
d. +8 dBm output for EDR measured with VDDTF = 2.9 V.
Maximum Unit
2480
–
–
–
6
MHz
dBm
dBm
dBm
dB
10
kHz
20
%
35
%
30
%
10
kHz
13
%
25
%
20
%
–20
dBc
–26
dBc
–20
dBm
–40
dBm
–36.0 e
–30.0 e, f
–47.0
–47.0
dBm
dBm
dBm
dBm
–127
dBm/Hz
–
dBm/Hz
–
dBm/Hz
–
dBm/Hz
–
dBm/Hz
–
dBm/Hz
–
dBm/Hz
–
dBm/Hz
Broadcom®
Bluetooth Transceiver and Baseband Processor
November 13, 2014 • MCS20705-DS104-R
Page 52
BROADCOM CONFIDENTIAL