STA2500D datasheet(25/57 Pages) STMICROELECTRONICS

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STA2500D

General specification

Doc ID 16067 Rev 1

25/57

Initial carrier frequency tolerance (for an exact reference)(5)

ΔF

|f_TX-f0|

kHz

Carrier frequency stability(6)

Δf_s|

Carrier frequency stability

3.2

kHz

Carrier frequency drift(7)

Δf_p1|

One slot packet

kHz

Δf_p3|

Three slots packet

kHz

Δf_p5|

Five slots packet

kHz

Carrier frequency drift rate(7)

Δf/50us|

Frequency drift rate

8/50

20/50

kHz/µs

Modulation accuracy (6) (7) (8)

Δf1avg

Maximum modulation

140

163

175

kHz

Δf2max

Minimum modulation

115

135

kHz

Δf1avg/Δf2avg

-0.8

0.9

2-DH5 RMS DEVM

2-DH5 99% DEVM

2-DH5 Peak DEVM

3-DH5 RMS DEVM

3-DH5 99% DEVM

3-DH5 Peak DEVM

TX out of band emission

E850

Emission in GSM band 850 MHz BW = 200 kHz (7) (9) (10)

--79

-76

dBm

E900

Emission in GSM band 900 MHz BW = 200 kHz (7) (9) (10)

--79

-76

dBm

E1500

Emission in GPS band

BW = 200 kHz (7) (9) (10)

--85

-84

dBm

E1800

Emission in GSM band 1800 MHz BW = 200 kHz (7) (9) (10)

--87

-84

dBm

E1900

Emission in GSM band 1900 MHz BW = 200 kHz (7) (9) (10)

--87

-84

dBm

Ewcdma

Emission in WCDMA band

BW = 3.8 MHz (7) (9) (10)

--78

-75

dBm

Lower transmit power (i.e. Class 2) can be obtained by programming the radio init power table via software parameter

download or an HCI command.

Power of GFSK part.

Relative power of EDR part compared to the GFSK part.

At antenna with maximum output power, filter attenuation of 2.3 dB.

Phase noise will add maximum [-10 kHz;10 kHz] for worst case clock 270 mVpp at 13 MHz.

Worst case clock 270 mVpp at 13 MHz. Measurement according to EDR RF test spec V2.0.E.3 [].

With maximum output power (BR or EDR).

Measured on reference design STLC2555_rev1.1 following eBOM and layout recommendations.

Measurement bandwidth.

10. Transmitting DH5 packets.

Table 19.

Transmitter parameters (continued)

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

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