MITSUMI IC for XO MM1424, MM1624 IC for XO Monolithic IC MM1424, MM1624 Series Outline This is a low current consumption, low operating voltage XO IC with Colpitz oscillation circuit. Smaller size is achieved by the on-chip bias circuit and Colpitz oscillation capacitor. Features 1. Low current consumption. 1.5mA max. (Vcc = 2.8V) 2. Low power supply operating voltage. Vcc = 2.3 to 3.3V 3. On-chip Colpitz oscillation capacitor · On-chip bias resistor. 4. Low phase noise. -140dBc (@1kHz) 5. Ultra-small package type. Package SC-82 (MM1424CUXX) MCSP-4A (MM1424CCXX) WLCSP-4A (MM1624CLXX) Applications 1. Crystal oscillators 2. VCXO 3. TCXO Pin Assignment MM1424CUXX 4 3 1 2 MM1424CCXX MM1624CLXX 1 4 1 4 2 3 2 3 SC-82 (TOP VIEW) MCSP-4A (TOP VIEW) WLCSP-4A (TOP VIEW) 1 X'tal 1 GND 1 X'tal 2 GND 2 X'tal 2 GND 3 VOUT 3 VCC 3 VOUT 4 VCC 4 VOUT 4 VCC MITSUMI IC for XO MM1424, MM1624 Equivalent Circuit Diagram MM1424CUXX VCC VOUT 4 3 47k 830 130k 36p 73p 73p 250 1 2 X'tal GND VCC VOUT 3 4 MM1424CCXX 47k 830 130k 36p 73p 73p 250 2 1 X'tal GND VCC VOUT 4 3 MM1624CL 47k 910 130k 36p 73p 73p 330 1 2 X'tal GND Note : The component values in the schematic circuit diagram are typical. MITSUMI IC for XO MM1424, MM1624 Pin Description Pin No Pin name MM1424CUXX MM1424CCXX MM1624CLXX Functions 1 2 1 X'tal X'tal pin 2 1 2 GND GND 3 4 3 VOUT Output pin 4 3 4 VCC Supply voltage Absolute Maximum Ratings (Ta=25°C) Item Symbol Ratings Unit Storage temperature TSTG -40~+125 °C Operating temperature TOPR -30~+80 °C Supply voltage VCC max. 5.5 V Input voltage VIN max. 0 <= VIN <= VCC V 150(MM1424CUXX) Pd Power dissipation 180(MM1424CCXX) * 220(MM1624CLXX) * mW Note : Assembled on PC board. Pc board dimensions : 80 20mm, t=0.8mm, (MM1424CCXX) Material : Glass epoxy 110 40mm, t=0.8mm, 4 stratum (MM1624CLXX) * Recommended Operating Conditions Item Symbol Ratings Unit Operating temperature TOPR -30~+80 °C Supply voltage VOP 2.3~3.3 V Operating frequency FOPR 10~26 MHz Note : The definition of the operation at the recommended operating conditions is to oscillate. * Electrical Characteristics (VCC=2.7V, Ta=25±2°C, Load : 2kΩ // 10pF, fosc=26MHz unless otherwise specificd) Item Symbol Measurement conditions Current consumption Icc VCC=2.8V Output frequency FO 40 50 VCC=2.6~2.8V *2 VIN=0.1Vrms, 26MHz * V 60 % Ω -100 -150 f-VCC VCC=2.7V±0.1V -0.2 0 0.2 ppm f-LO RL=2kΩ±10% CL=10pF±10% -0.3 0 0.3 ppm Note1 1: Output frequency satisfies the results measured by the correlation test boxes. Note2 2: Duty ratio is measured at the center of Vp-p. Note3 3: The items of 3 are only guaranteed by the desigh of the circuit. * * * ppm 1.05 Duty * Frequency stability-load variation 3 * 30 0.8 Duty ratio Frequency stability-supply voltage variation 3 mA 0 VCC=2.6V RN 1.5 -30 VOUT * 1.3 *1 Output voltage Negative resistance 3 Min. Typ. Max. Unit MITSUMI IC for XO MM1424, MM1624 Measuring Circuit MM1424CUXX MM1424CCXX 10000pF TP 10000pF A 2kΩ VCC 10pF 10000pF 2kΩ VCC 4 3 3 2 2 X'tal 26MHz 47Ω MM1624CLXX 10000pF TP A 2kΩ 10pF 10000pF 4 3 MM1624 1 2 10pF 47Ω 1 10pF · This load capacity (10pF) contains a capacity of a probe. VCC 4 MM1424 10pF 47Ω 10pF 10000pF MM1424 1 TP A X'tal 26MHz · This load capacity (10pF) contains a capacity of a probe. X'tal 26MHz · This load capacity (10pF) contains a capacity of a probe. MITSUMI IC for XO MM1424, MM1624 Circuit diagram which is to measure the negative resistance. MM1424CUXX MM1424CCXX 10000pF 10000pF 2kΩ 10000pF 10pF VCC 4 3 3 MM1424 1 2 2 1µF 0.1Vrms 26MHz sine wave VIN TP 10000pF 2kΩ 10000pF VCC 3 MM1624 1 1µF VIN 0.1Vrms 26MHz sine wave TP 0.1Vrms 26MHz sine wave TP MM1624CLXX 4 4 MM1424 1µF VIN 2kΩ 10000pF VCC 2 10pF 1 10pF