TSA5514AT datasheet(13/18 Pages) PHILIPS

Part #	TSA5514AT

Description	1.3 GHz bidirectional I2C-bus controlled synthesizer

PDF	18 Pages

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Manufacturer	PHILIPS [NXP Semiconductors]

Direct Link	http://www.nxp.com

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13 / 18 page

October 1992

Philips Semiconductors

Product speciﬁcation

1.3 GHz bidirectional I2C-bus controlled synthesizer

TSA5514

FLOCK FLAG DEFINITION (FL)

When the FL flag is 1, the maximum frequency deviation (

∆f) from stable frequency can be expressed as follows:

Where:

FLOCK FLAG APPLICATION

• Kvco = 16 MHz/V (UHF band)

• ICP = 220 µA

• C1 = 180 nF

• C2 = 39 nF

•∆f = ± 27.5 kHz.

Table 5

Flock ﬂag settings

KVCO

oscillator slope (Hz/V)

ICP

charge-pump current (A)

× 10E6

C1 and C2

loop ﬁlter capacitors (see Fig.8)

MIN.

MAX.

UNIT

Time span between actual phase lock and FL-ﬂag setting

1024

1152

µs

Time span between the loop losing lock and FL-ﬂag resetting

128

µs

∆fK

VCO KO

⁄

()

⁄

Fig.8 Loop filter.

TSA5514AT Datasheet(PDF) 13 Page - NXP Semiconductors