AD9516-5PCBZ datasheet(53/76 Pages) AD

53 / 76 page

AD9516-5

Rev. A | Page 53 of 76

Table 49. PLL

Reg.

Addr.

(Hex)

Bits

Name

Description

0x010

PFD polarity

Sets the PFD polarity.

0: positive; higher control voltage produces higher frequency (default).

1: negative; higher control voltage produces lower frequency.

[6:4]

CP current

Charge pump current (with CPRSET = 5.1 kΩ).

ICP (mA)

0.6

1.2

1.8

2.4

3.0

3.6

4.2

4.8 (default)

[3:2]

CP mode

Charge pump operating mode.

Charge Pump Mode

High impedance state

Force source current (pump up)

Force sink current (pump down)

Normal operation (default)

[1:0]

PLL power-down

PLL operating mode.

Mode

Normal operation

Asynchronous power-down (default)

Normal operation

Synchronous power-down

0x011

[7:0]

14-bit R divider,

Bits[7:0] (LSB)

R divider LSBs—lower eight bits (default = 0x01).

0x012

[5:0]

14-bit R divider,

Bits[13:8] (MSB)

R divider MSBs—upper six bits (default = 0x00).

0x013

[5:0]

6-bit A counter

A counter (part of N divider) (default = 0x00).

0x014

[7:0]

13-bit B counter,

Bits[7:0] (LSB)

B counter (part of N divider)—lower eight bits (default = 0x03).

0x015

[4:0]

13-bit B counter,

Bits[12:8] (MSB)

B counter (part of N divider)—upper five bits (default = 0x00).

0x016

Set CP pin

to VCP/2

Sets the CP pin to one-half of the VCP supply voltage.

0: CP normal operation (default).

1: CP pin set to VCP/2.

Reset R counter

Resets R counter (R divider). This bit is not self-clearing.

0: normal (default).

1: holds the R counter in reset.

Reset A and B

counters

Resets A and B counters (part of N divider).

0: normal (default). This bit is not self-clearing.

1: holds the A and B counters in reset.

Reset all counters

Resets R, A, and B counters. This bit is not self-clearing.

0: normal (default).

1: holds the R, A, and B counters in reset.

B counter bypass

B counter bypass. This is valid only when operating the prescaler in FD mode.

0: normal (default).

1: B counter is set to divide-by-1. This allows the prescaler setting to determine the divide for the N divider.

AD9516-5PCBZ Datasheet(PDF) 53 Page - Analog Devices

AD9516-5PCBZ Datasheet(HTML) 53 Page - Analog Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76

Datasheet Download

Link URL