21

9128D–RKE–01/09

ATA5749 [Preliminary]

4.6

FSK modulation

frequency

Duty cycle of the modulation

signal = 50%, (this corresponds

to 40 kBit/s Manchester coding

and 80 kBit/s NRZ coding)

2, 5

F

MOD_FSK

040

kHz

B

4.7

ASK modulation

frequency

Duty cycle of the modulation

signal = 50%, (this corresponds

to 40 kBit/s Manchester coding

and 80 kBit/s NRZ coding)

2, 5

F

MOD_ASK

040

kHz

B

4.8

Spurious emission

At f

At f

5

Spur

–47

–47

–60

dBc

B

4.9

Spurious emission

DIV_CNTRL = “High”

At f

5

Spur

–47

–58

dBc

B

4.10 Spurious emission

CLK_ON = “Low”

At f

5

Spur

–60

dBc

B

4.11 Fractional Spurious

ASK_NFSK = “High”

TX_Mode_2

FREQ[0:14] = 3730,

FSEP[0:7] = 101

S434_N315 = “Low”

f

FREQ[0:14] = 14342,

FSEP[0:7] = 101

S434_N315 = “High”

5

Spur

–50

–50

–50

–50

dBc

B

4.12

FSK frequency

deviation

see Table 3-1 on page 4

±0.396

±101.16

kHz

A

4.13 Frequency resolution

f

Δf

PLL

793

Hz

A

10. Electrical Characteristics (Continued)

C

No.

Parameters

Test Conditions

Pin

Symbol

Min.

Typ.

Max.

Unit

Type*

*) Type means: A = 100% tested, B = 100% correlation tested, C = Characterized on samples, D = Design parameter

Note:

(Pin Number) in brackets mean they are measured matched to 50

f

32768

⎝⎠

⎛⎞

f

128.5

⎝⎠

⎛⎞

f

16384

⎝⎠

⎛⎞