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Clock Synthesizer for Portable Systems

Package Information

CAD Model: View CAD Model
Pkg. Type: VFQFPN
Pkg. Code: NLG20
Lead Count (#): 20
Pkg. Dimensions (mm): 4.0 x 4.0 x 1.0
Pitch (mm): 0.5

Environmental & Export Classifications

Pb (Lead) Free Yes
ECCN (US) EAR99
HTS (US) 8542.39.0090
Moisture Sensitivity Level (MSL) 3

Product Attributes

Pkg. Type VFQFPN
Lead Count (#) 20
Pb (Lead) Free Yes
Carrier Type Tube
Accepts Spread Spec Input No
Advanced Features Spread Spectrum, Reference Output
C-C Jitter Max P-P (ps) 375
C-C Jitter Typ P-P (ps) 225
Core Voltage (V) 1.8
Feedback Input No
Input Freq (MHz) 27 - 27
Input Type Crystal
Inputs (#) 4
Length (mm) 4
MOQ 600
Moisture Sensitivity Level (MSL) 3
Output Banks (#) 4
Output Signaling LVCMOS
Output Type LVCMOS
Output Voltage (V) 1.8V, 2.5V
Outputs (#) 5
Package Area (mm²) 16
Pb Free Category e3 Sn
Period Jitter Typ P-P (ps) 225
Pitch (mm) 0.5
Pkg. Dimensions (mm) 4.0 x 4.0 x 1.0
Prog. Clock Yes
Prog. Interface Serial
Published No
Qty. per Carrier (#) 75
Qty. per Reel (#) 0
Reference Output Yes
Requires Terms and Conditions Does not require acceptance of Terms and Conditions
Spread Spectrum Yes
Supply Voltage (V) 1.8 - 1.8
Tape & Reel No
Temp. Range (°C) 0 to 70°C
Thickness (mm) 1
Width (mm) 4
Xtal Freq (KHz) 27 - 27
Xtal Inputs (#) 1

Description

The IDT1493-17 is a low-power, low-jitter clock synthesizer designed to replace multiple crystals and oscillators in portable audio/video systems. The device generates a 37 MHz processor clock, a 48 MHz USB clock, a fixed 22.5792 MHz audio clock, a selectable 24.576 MHz or 22.5792 MHz audio clock, and a 27 MHz reference clock for video. Using IDT's proprietary mix of analog and digital Phase-Locked Loop (PLL) technology, the device spreads the frequency spectrum of the 37 MHz output, reducing the peak amplitude of by up to 16 dB. An output enable (OE) pin lowers the chip power consumption while tri-stating all outputs.