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MC44BS374T1AD-R2 数据表(PDF) 9 Page - Freescale Semiconductor, Inc |
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MC44BS374T1AD-R2 数据表(HTML) 9 Page - Freescale Semiconductor, Inc |
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9 / 34 page ![]() I2C Programming MC44BS374T1/374T1A Advance Information WRITE MODE: Test Mode 2 NOTE: Test modes 1 and 2 are intended for manufacturing test purposes only and cannot be used for normal applications, except for VHF range (states 1.b to 1.e). READ MODE X5 X4 X3 State Description 0 0 0 2.a Normal operation 0 0 1 2.b Test pattern generator DC verification (Test pattern DC test mode available) 0 1 0 2.c Program divider test (UHF program divider on PLLFILT pin and sound program divider on SPLLFIL pin) 0 1 1 2.d Reference divider test (UHF reference divider on PLLFILT pin) 1 0 0 2.e UHF phase comparison, upper source on PLLFILT pin Sound phase comparison 10 µA upper source on SPLLFIL (Only valid during transient output inhibit.) 1 0 1 2.f UHF phase comparison, lower source on PLLFILT pin Sound phase comparison 10 µA lower source on SPLLFIL (Only valid during transient output inhibit.) 1 1 0 2.g Sound phase comparison 1 µA upper source on SPLLFIL (Not valid during transient output inhibit.) 1 1 1 2.h Sound phase comparison 1 µA lower source on SPLLFIL (Not valid during transient output inhibit.) OOR Description 0 Normal operation, VCO in range 1 VCO out of range Y1 Description 0 VCO out of range, frequency too low, only valid if OOR=1 1 VCO out of range, frequency too high, only valid if OOR=1 Y2 Description 0 High VCO is active 1 Low VCO is active Freescale Semiconductor, Inc. For More Information On This Product, Go to: www.freescale.com |
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