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Renesas’ Timing product portfolio has been acquired by SiTime.

Datasheets, documentation, and sample orders remain available on Renesas.com through late 2026. For new designs, purchasing, support, and product inquiries, visit SiTime.com or send an email to SalesClocks@sitime.com. Full transition to SiTime is expected by late 2026.

661 - Block Diagram
661 - Pinout
3D illustration featuring top and bottom of TSSOP IC chip package with 16 lead count
661 - Block Diagram
661 - Pinout
3D illustration featuring top and bottom of TSSOP IC chip package with 16 lead count

661GILFT

Obsolete
Precision Audio Clock Source
661 DatasheetLearn more about 661

Package Information

CAD Model:View CAD Model
Pkg. Type:TSSOP
Pkg. Code:PGG16
Lead Count (#):16
Pkg. Dimensions (mm):5.0 x 4.4 x 1.0
Pitch (mm):0.65

Environmental & Export Classifications

Pb (Lead) FreeYes
ECCN (US)EAR99
HTS (US)8542.39.0090
Moisture Sensitivity Level (MSL)1

Product Attributes

Pkg. TypeTSSOP
Lead Count (#)16
Pb (Lead) FreeYes
Carrier TypeReel
Advanced FeaturesReference Output
Core Voltage (V)3.3
Feedback InputNo
Input Freq (MHz)27 - 27
Input TypeCrystal, LVCMOS
Inputs (#)1
Length (mm)5
MOQ2500
Moisture Sensitivity Level (MSL)1
Output Banks (#)2
Output Freq Range (MHz)8.192 - 8.192, 11.2896 - 11.2896, 12.288 - 12.288, 16.384 - 16.384, 16.9344 - 16.9344, 18.432 - 18.432, 22.5792 - 22.5792, 24.576 - 24.576, 33.888 - 33.888, 36.864 - 36.864, 49.152 - 49.152, 73.728 - 73.728
Output TypeLVCMOS
Output Voltage (V)1.8V, 2.5V, 3.3V
Outputs (#)2
Package Area (mm²)22
Pb Free Categorye3 Sn
Period Jitter Typ P-P (ps)175
Pitch (mm)0.65
Pkg. Dimensions (mm)5.0 x 4.4 x 1.0
Prog. ClockNo
Qty. per Carrier (#)0
Qty. per Reel (#)2500
Reel Size (in)13
Reference OutputYes
Requires Terms and ConditionsDoes not require acceptance of Terms and Conditions
Spread SpectrumNo
Tape & ReelYes
Temp. Range (°C)-40 to 85°C
Thickness (mm)1
Width (mm)4.4

Description

The 661 provides synchronous clock generation for audio sampling clock rates derived from an MPEG stream, or can be used as a standalone clock source with a 27 MHz crystal. The device uses the latest PLL technology to provide excellent phase noise and long term jitter performance for superior synchronization and S/N ratio. Please contact IDT if you have a requirement for an input and output frequency not included here - we can rapidly modify this product to meet special requirements.

Learn more about 661