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LC72191M датащи(PDF) 6 Page - Sanyo Semicon Device |
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LC72191M датащи(HTML) 6 Page - Sanyo Semicon Device |
6 / 16 page Pin Functions Note: *1. The high and low level input voltages for the CE, CL, DI, IN0 and IN1 pins are VIH = 2.2 to 6.5 V and VIL = 0 to 0.7 V, regardless of the power supply voltage VDD. *2. Since the output port states are undefined when power is first applied, transfer the control data quickly. No. 3985-6/16 LC72191, 72191M, 72191JM Pin No. Symbol I/O Type Function 1 24 19 18 21 22 6 20 23 2 4 3 5 XIN XOUT FMIN AMIN PD1 PD2 SYC VDD VSS CE CL DI DO Input Output Input Input Three-state N-channel open drain — — Input*1 Input*1 Input*1 Output (N-channel open drain) Xtal OSC Local oscillator signal input Local oscillator signal input Charge pump outputs Controller clock Power supply Ground Chip enable Clock Input data Output data • Connections for a 7.2 MHz crystal oscillator • FMIN is selected when DV in the serial input data is set to 1. • Input frequency range: 10 to 130 MHz (70 mVrms minimum) • The signal passes through an internal divide-by-two prescaler and is then supplied to the swallow counter. • Although the divisor setting is in the range 256 to 65,536, the actual divisor will be twice the set value due to the presence of the internal divide-by-two prescaler. • AMIN is selected when DV in the serial input data is set to 0. • When SP in the serial input data is set to 1: — Input frequency range: 2 to 40 MHz (70 mVrms minimum). — The signal is supplied directly to the swallow counter without passing through the internal divide-by-two prescaler. — The divisor setting is in the range 256 to 65,536 and the actual divisor will be the value set. • When SP in the serial input data is set to 0: — Input frequency range: 0.5 to 10 MHz (70 mVrms minimum). — The signal is supplied directly to a 12-bit programmable divider. — The divisor setting is in the range 4 to 4,096 and the actual divisor will be the value set. • PLL charge pump outputs. High levels are output from PD1 and PD2 when the local oscillator frequency divided by n is higher than the reference frequency, and low levels are output when that frequency is lower than the reference frequency. These pins go to the floating state when the frequencies agree. • SYC is a controller clock source. The LC72191 outputs a 400 kHz 66% duty signal from this pin after power is applied. • The LC72191 power supply pin. A voltage of between 4.5 and 6.5 V must be provided when the PLL is operating. The supply voltage can be lowered to 3.5 V when only operating the crystal oscillator circuit to acquire the controller clock and the clock time base outputs. • The LC72191 ground pin • This pin must be set high when inputting serial data (via DI) or when outputting serial data (via DO). • The clock input used for data signal synchronization during serial data input (via DI) or output (via DO). • Input pin used when transferring serial data from the controller to the LC72191. • A total of 36 bits of data must be supplied to set up the LC72191 initial state. • Output pin used when transferring serial data to the controller from the LC72191. • A total of 28 bits from an internal shift register can be output in synchronization with the CL signal. Continued on next page. 9 10 11 12 13 14 17 OUT0 OUT1 OUT2 OUT3 OUT4 OUT5 OUT6 Output*2 Output port • These pins latch bits O0 to O6 in the serial data transferred from the controller, invert that data and output the inverted data in parallel. • The OUT0 pin can also be used to output an 8 Hz clock time base signal. (When TB is 1.) • OUT1 and OUT2 are complementary outputs. • OUT0, OUT3, OUT4, OUT5 and OUT6 are N-channel open drain outputs that can handle up to 13 V. |
Аналогичный номер детали - LC72191M |
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Аналогичное описание - LC72191M |
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