T2802 datasheet(24/29 Pages) ATMEL

24 / 29 page

T2802

4509F–DECT–10/03

VCOs

Frequency range

TX-VCO, D12 (VS) = 1

RX-VCO, D12 (VS) = 0

fvco

vco

2400

2289

2500

2389

MHz

Tuning gain

tune

MHz/V

Frequency control voltage range

Pin 17

tune

0.4

2.8

VCO_DAC range

See bus protocol D3 ... D6

vco,DAC

±5%

PLL

Scaling factor prescaler

PSC

32/33

Scaling factor main counter

40 - 47

Scaling factor swallow counter

031

External reference input frequency

AC coupled sinewave, pin 4

REF_CLK

10.368

13.824

20.736

27.648

MHz

External reference input voltage

AC coupled sinewave, pin 4

REF_CLK

250

RMS

Scaling factor reference counter

3/4/6/8

Charge Pump (Pin 13)

Output current

CP = VVS_CP /2, I_CPSW = ‘1’,

Pin 48

CP_nom

7.5

Output current

CP = VVS_CP /2, I_CPSW = ‘0’,

Pin 48

ICP_nom

1.2

Current scaling

CP = ICP_nom + CPCS

´ I

CP_step

(see bus protocol D1 ... D2)

CP_step

0.2

Leakage current

±100

Gaussian Transmit Filter (Gaussian Shape B

´ T = 0.5)

Tx data filter clock

6 taps in filter

TXFCLK

6.912

MHz

Frequency deviation

GFFM_nom

±400

kHz

Frequency deviation scaling

FM = GFFM_nom

´ GFCS

(see bus protocol D7 ... D9)

GFCS

130

Modulation Compensation Circuit

Oversampling

OVS

Digital sum variation

DSV

Current scaling factor

See bus protocol E3 ... E5

MCCS

130

TX Driver (Pin 32)

Maximum output power

At L = 5.6 nH, pin 32

(see bus protocol E11 - E12)

PTX

3dBm

Minimum output power

At L = 5.6 nH, pin 32

(see bus protocol E11 - E12)

-21

dBm

Electrical Characteristics (Continued)

Test conditions (unless otherwise specified): VS_REG = 3.2 V, Tamb = 25°C

Parameters

Test Conditions/Pins

Symbol

Min.

Typ.

Max.

Unit

T2802 Datasheet(PDF) 24 Page - ATMEL Corporation

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