SP8401KGMPES

SP8401 Very Low Phase Noise 300MHz ÷10/11 Supersedes February 1992 edition DS3230 - 3.1 April 1994 The SP8401 is a very low phase noise variable modulus divider. Special circuit techniques have been used to reduce the phase noise considerably below that produced by standard dividers. The modulus control input is CMOS or TTL compatible. The SP8401 is packaged in a 28 pin plastic SO package to be compatible with the SP8400 and SP8402 devices. N/C N/C N/C VCC +5V GND CLOCK INPUT CLOCK INPUT CLOCK INPUT CLOCK INPUT GND VCC +5V VCC +5V N/C MODULUS CONTROL 1 2 3 4 5 6 7 8 9 10 11 12 13 14 28 27 26 25 24 23 22 21 20 19 18 17 16 15 N/C N/C N/C N/C N/C N/C N/C OUTPUT OUTPUT N/C VCC +5V N/C N/C N/C FEATURES s Very low Phase Noise (Typically -160dBc/Hz at 1kHz offset) s Supply Voltage 5V ABSOLUTE MAXIMUM RATINGS Supply Voltage Output Current Storage Temperature Range Maximum Clock Input Voltage 6.5V 20mA -55°C to +125°C 2.5V p-p MP28 ORDERING INFORMATION SP8401 KG MPES(Commercial Grade) Fig.1 Pin connections - top view 0 –10 –20 –30 –40 –50 (f) (dBc/Hz) –3dB –60 –70 –80 –90 –100 –110 –120 –130 –140 –150 –160 –170 1 10 100 Frequency (Hz) 1k 10k 100k Fig.2 Typical single sideband phase noise measured at 300MHz SP8400 ELECTRICAL CHARACTERISTICS Guaranteed over: Supply voltage VCC = +4.75V to +5.25V Temperature Tamb = -10°C to +75°C Tested at +4.75V and +5.25V at Tamb = +25°C Characteristic Pin Min. 4, 11, 12, 18 20, 21 7, 8 50 340 Value Typ. Max. 57 440 64 mA mV mV dBm Out...