Name: Analog Devices AD9854
Brand: Analog Devices
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AD9854

Rev. E | Page 21 of 52

FREQUENCY

MODE

TW1

TW2

FSKDATA(PIN29)

001 (FSK NO RAMP)

000 (DEFAULT)

I/O UD CLK

00636-036

Figure 36. Unramped (Traditional) FSK Mode

I/O UD CLK

FREQUENCY

MODE

TW1

TW2

010 (RAMPED FSK)

000 (DEFAULT)

REQUIRES A POSITIVE TWOS COMPLEMENT VALUE

RAMP RATE

DFW

FSKDATA(PIN29)

00636-037

Figure 37. Ramped FSK Mode (Start at F1)

FREQUENCY

MODE

TW1

TW2

FSK DATA

010 (RAMPED FSK)

000 (DEFAULT)

I/O UD CLK

00636-038

Figure 38. Ramped FSK Mode (Start at F2)

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Analog Devices AD9854 Specifications

General