CF5008A1

CF5008A1 NIPPON PRECISION CIRCUITS INC. VCXO Module IC OVERVIEW The CF5008A1 is a VCXO module IC that employs a circuit structure with low parasitic capacitance effects and a wide frequency range. Built-in components mean that few external components are required to construct a VCXO. FEATURES s s s s s s s s Up to 30 MHz operation Inverter amplifier feedback resistor built-in 8 mA (VDD = 5 V), 4 mA (VDD = 3 V) drive capability 2.7 to 5.5 V supply voltage Circuit structure with low parasitic capacitance effects Direct connection to varicap diodes and crystal Few external components required to form a VCXO Amplitude limiting resistor Rd built-in Chip form (CF5008A1) SERIES CONFIGURATION Version CF5008A1 Output frequency fO Input level CMOS Output duty level CMOS S t a n d by output state High impedance ORDERING INFORMATION D e vice C F 5 0 0 8 A 1 –2 P ackag e Chip form NIPPON PRECISION CIRCUITS—1 CF5008A1 PAD LAYOUT (Unit : µm) UNUSED2 VDD INH XT2 UNUSED1 1 2 3 4 5 (1400,1300) 8 7 6 Q (0,0) VSS XT Chip size: 1.40 × 1.30 mm Chip thickness: 220 ± 30 µm Chip base: V D D level PAD DIMENSIONS Number 1 2 3 4 5 6 7 8 Name UNUSED1 UNUSED2 XT2 VDD INH Q XT VSS I/O – – O – I O I – Not used. Not used. Oscillator output pin Supply voltage Output-control input pin. Q signal output enabled when HIGH or open. High-impedance output when LOW . Output pin Oscillator input pin Ground Description P ad dimensions [µm] X 153 425 660 865 1202 1245 346 155 Y 1112 1112 1112 1112 111...