Appendix-chapter8 - FUJITSU SEMICONDUCTOR DATA SHEET...

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DS04-21343-1E FUJITSU SEMICONDUCTOR DATA SHEET ASSP Single Serial Input PLL Frequency Synthesizer On-Chip 2.5 GHz Prescaler MB15E07 DESCRIPTION The Fujitsu MB15E07 is serial input Phase Locked Loop (PLL) frequency synthesizer with a 2.5 GHz prescaler. A 32/33 or a 64/65 can be selected for the prescaler that enables pulse swallow operation. The latest BiCMOS process technology is used, resuItantly a supply current is limited as low as 8 mA typ. This operates with a supply voltage of 3.0 V (typ.) Furthermore, a super charger circuit is included to get a fast tuning as well as low noise performance. As a result of this, MB15E07 is ideally suitable for digital mobile communications, such as GSM (Global System for Mobile Communications). FEATURES • High frequency operation: 2.5 GHz max (@ P= 64/65) 1.8 GHz max (@P = 32/33) • Low power supply voltage: V CC = 2.7 to 3.6 V • Very Low power supply current : I CC = 8.0 mA typ. (V CC = 3 V) • Power saving function : I PS = 0.1 μ A typ. • Pulse swallow function: 32/33 or 64/65 • Serial input 14-bit programmable reference divider: R = 5 to 16,383 • Serial input 18-bit programmable divider consisting of: - Binary 7-bit swallow counter: 0 to 127 - Binary 11-bit programmable counter: 5 to 2,047 • Wide operating temperature: Ta = –40 to 85 ° C • Plastic 16-pin SSOP package (FPT-16P-M05) PACKAGE 16-pin, Plastic SSOP (FPT-16P-M05)
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2 MB15E07 PIN ASSIGNMENT OSCin OSCout Vp V CC Do GND Xfin fin 1 2 3 4 5 6 7 8 φ R φ P LD/fout ZC PS LE Data Clock 16 15 14 13 12 11 10 9 (Top View)
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3 MB15E07 PIN DESCRIPTIONS Pin no. Pin name I/O Descriptions 1 OSC IN I Programmable reference divider input. Oscillator input. Connection for an crystal or a TCXO. TCXO should be connected with a coupling capacitor. 2 OSC OUT O Oscillator output. Connection for an external crystal. 3V P Power supply voltage input for the charge pump. 4V CC Power supply voltage input. 5D O O Charge pump output. Phase of the charge pump can be reversed by FC bit. 6 GND Ground. 7 Xfin I Prescaler complementary input, and should be grounded via a capacitor. 8 fin I Prescaler input. Connection with an external VCO should be done with AC coupling. 9 Clock I Clock input for the 19-bit shift register. Data is shifted into the shift register on the rising edge of the clock. (Open is prohibited.) 10 Data I Serial data input using binary code. The last bit of the data is a control bit. (Open is prohibited.) Control bit = “H” ;Data is transmitted to the programmable reference counter. Control bit = “L” ;Data is transmitted to the programmable counter. 11 LE I Load enable signal input When LE is high, the data in the shift register is transferred to a latch, according to the control bit in the serial data. 12 PS I Power saving mode control. This pin must be set at “L” at Power-ON. PS = “H” ; Normal mode PS = “L” ; Power saving mode 13 ZC I Forced high-impedance control for the charge pump (with internal pull up resistor.) ZC = “H” ; Normal Do output.
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Appendix-chapter8 - FUJITSU SEMICONDUCTOR DATA SHEET...

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