| Part Number | ZL30255 |
| Manufacturer | Microsemi |
| Title | Multiplier and Jitter Attenuator |
| Description | ... 8 5. FUNCTIONAL DESCRIPTION... |
| Features |
• Two Independent Channels • Three Input Clocks Per Channel • Three inputs, two differential/CMOS, one CMOS • Any input frequency from 1kHz to 1250MHz (1kHz to 300MHz for CMOS) • Inputs continually monitored for activity and frequency accuracy • Automatic or manual reference switching • Low-Bandwidt... |
| File Size | 2.16MB |
| Datasheet |
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ZL30250 : ZL30250 - ZL30251 4 Input, 3 Output Any-to-Any Clock Multiplier and Frequency Synthesizer ICs Features Four Input Clocks • One Crystal/CMOS Input • Two Differential/CMOS Inputs • One Single-Ended/CMOS Input • Any Input Frequency from 9.72 MHz to 1250 MHz (9.72 MHz to 300 MHz for CMOS) • Clock Selection by Pin or Register Control Low-Jitter Fractional-N APLL and 3 Outputs • Any Output Frequency from 1 Hz to 1035 MHz • High-Resolution Fractional Frequency Conver- sion with 0 ppm Error • Easy-to-Configure, Encapsulated Design Requires No External VCXO or Loop Filter Components • Each Output has Independent Dividers • Output Jitter as Low as 0.16 ps RMS (12 kHz to 20 MHz Integration Band) • O.
ZL30250 : ... 7 5. FUNCTIONAL DESCRIPTION 9 5.1 DEVICE IDENTIFICATION .... 9 5.2 PIN-CONTROLLED AUTOMATIC CONFIGURATION AT RESET . 9 5.2.1 ZL30250—External EEPROM or No EEPROM . 9 5.2.2 ZL30251—Internal EEPROM..
ZL30251 : ZL30250 - ZL30251 4 Input, 3 Output Any-to-Any Clock Multiplier and Frequency Synthesizer ICs Features Four Input Clocks • One Crystal/CMOS Input • Two Differential/CMOS Inputs • One Single-Ended/CMOS Input • Any Input Frequency from 9.72 MHz to 1250 MHz (9.72 MHz to 300 MHz for CMOS) • Clock Selection by Pin or Register Control Low-Jitter Fractional-N APLL and 3 Outputs • Any Output Frequency from 1 Hz to 1035 MHz • High-Resolution Fractional Frequency Conver- sion with 0 ppm Error • Easy-to-Configure, Encapsulated Design Requires No External VCXO or Loop Filter Components • Each Output has Independent Dividers • Output Jitter as Low as 0.16 ps RMS (12 kHz to 20 MHz Integration Band) • O.
ZL30251 : ... 7 5. FUNCTIONAL DESCRIPTION 9 5.1 DEVICE IDENTIFICATION .... 9 5.2 PIN-CONTROLLED AUTOMATIC CONFIGURATION AT RESET . 9 5.2.1 ZL30250—External EEPROM or No EEPROM . 9 5.2.2 ZL30251—Internal EEPROM..
ZL30252 : ... 9 5. FUNCTIONAL DESCRIPTION .... 11 5.1 DEVICE IDENTIFICATION .. 11 5.2 TOP-LEVEL CONFIGURATION . 11 5.2.1 APLL-Only Mode .... 11 5.2.2 DPLL+APLL Mod.
ZL30253 : ... 9 5. FUNCTIONAL DESCRIPTION .... 11 5.1 DEVICE IDENTIFICATION .. 11 5.2 TOP-LEVEL CONFIGURATION . 11 5.2.1 APLL-Only Mode .... 11 5.2.2 DPLL+APLL Mod.
ZL30254 : All device inputs and outputs are LVCMOS unless described otherwise. The Type column uses the following symbols: I – input, IPU – input with 50k internal pullup resistor, O – output, A – analog, P – power supply pin.. Table 1 - Pin Descriptions Pin # Name Type Description Input Clock Pins 8 IC1 I Single-ended signal format. For input signal amplitude 2.5V, connect the 6 IC2 signal directly to the pin. For input signal amplitude ≤2.5V, AC-couple the signal to the pin. Crystal Pins 10 11 XA XB A/I An on-chip crystal driver circuit is designed to work with an external crystal connected to the XA and XB pins. See section 4.1.2 for crystal characteristics and recommended ext.
ZL30256 : . 11 6. FUNCTIONAL DESCRIPTION .... 14 6.1 INPUT REFERENCES . 14 6.1.1 Input Sources ......