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STCD1020 Datasheet(PDF) 1 Page - STMicroelectronics |
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STCD1020 Datasheet(HTML) 1 Page - STMicroelectronics |
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1 / 40 page  May 2008 Rev 4 1/40 1 STCD1020, STCD1030, STCD1040 Multi-channel clock distribution circuit Features ■ 2, 3 or 4 outputs buffered clock distribution ■ Single-ended sine wave or square wave clock input and output ■ Individual clock enable for each output ■ Lower fan-out on clock source ■ No AC coupling capacitor needed at the input ■ Ultra-low phase noise and standby current ■ 2.5 V to 3.6 V supply voltage(a) ■ 10 pF typical load driving capability ■ Available in TDFN packages – STCD1020 - 8-lead (2 mm x 2 mm) – STCD1030 - 10-lead (2 mm x 2.5 mm) – STCD1040 - 12-lead (2 mm x 3 mm) ■ Operational temperature : –40°C to 85°C Applications ■ Multi-mode RF clock reference ■ Baseband peripheral devices clock reference Description The STCD1020, STCD1030 and STCD1040 are 2, 3 or 4 outputs unity gain clock distribution circuits, which are used to provide a common frequency clock to multi-mode mobile RF applications. It can also be used for those baseband peripheral applications in a mobile phone such as WLAN, Bluetooth, GPS and DVB- H as a clock reference. The STCD1020, STCD1030 and STCD1040 isolate each device driven by their clock outputs and minimize interference between the devices. Each of the clock buffers can be disabled to lower the power consumption if the connected device does not need the clock. The STCD1020, STCD1030 and STCD1040 accept commonly used mobile master clock frequencies ranging from 10 MHz to 52 MHz. The STCD1020, STCD1030 and STCD1040 are available in 2 mm x 2 mm 8-lead, 2 mm x 2.5 mm 10-lead and 2 mm x 3 mm 12-lead TDFN packages and can be operated with a single 2.8 V (or 1.8 V) supply. The operational temperature is –40°C to +85°C. a. For the 1.65 to 2.75 V version, please contact local ST sales office TDFN (8, 10 or 12 lead) Table 1. Device summary Order code Operating temperature range Channel Supply Package STCD1020RDG6E –40°C to 85°C 2 2.8 V TDFN8 STCD1030RDH6E –40°C to 85°C 3 2.8 V TDFN10 STCD1040RDM6F –40°C to 85°C 4 2.8 V TDFN12 www.st.com |
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