AD9549ABCPZ

Semiconductors - ICs

> Clock Timing & Frequency Management

> Clock Synthesizers & Generators

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Series Information for AD9549ABCPZ - Analog Devices

Features

  • feature
    Flexible reference inputs Input frequencies: 8 kHz to 750 MHz Two reference inputs Loss of reference indicators Auto and manual holdover modes Auto and manual switchover modes Smooth A-to-B phase transition on outputs Excellent stability in holdover mode Programmable 16 + 1-bit input divider, R Differential HSTL clock output Output frequencies to 750 MHz Low jitter clock doubler for frequencies of >400 MHz Single-ended CMOS output for frequencies of <150 MHz Programmable digital loop filter (<1 Hz to ~100 kHz) High speed digitally controlled oscillator (DCO) core Direct digital synthesizer (DDS) with integrated 14-bit DAC Excellent dynamic performance Programmable 16 + 1-bit feedback divider, S Software controlled power-down Available 64-lead LFCSP package

Description

CLOCK GENERATOR 750MHZ LFCSP-64

The AD9549 provides synchronization for many systems, including synchronous optical networks (SONET/SDH). The AD9549 generates an output clock, synchronized to one of two external input references. The external references may contain significant time jitter, also specified as phase noise. Using a digitally controlled loop and holdover circuitry, the AD9549 continues to generate a clean (low jitter), valid output clock during a loss of reference condition, even when both references have failed. The AD9549 operates over an industrial temperature range of −40°C to +85°C.

Specifications

Clock IC Type:
Clock Generator / Synchroniser
Frequency:
750MHz
No. of Outputs:
2Outputs
Supply Voltage Min:
3.135V
Supply Voltage Max:
3.465V
Clock IC Case Style:
LFCSP
No. of Pins:
64Pins
Operating Temperature Min:
-40°C
Operating Temperature Max:
85°C
Product Range:
AD9549 Series
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 3 - 168 hours
SVHC:
No SVHC (07-Jul-2017)

Alternate Descriptions

Newark Electronics
CLOCK GENERATOR, 750MHZ, LFCSP-64; Clock IC Type:Clock Generator / Synchroniser; Frequency:750MHz; No. of Outputs:2Outputs; Supply Voltage Min:3.135V; Supply Voltage Max:3.465V; Clock IC Case Style:LFCSP; No. of Pins:64Pins RoHS Compliant: Yes
Richardson RFPD
LINEAR ICS, OTHER