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82P33731ABAG Datasheet(PDF) 9 Page - Integrated Device Technology |
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82P33731ABAG Datasheet(HTML) 9 Page - Integrated Device Technology |
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9 / 68 page  9 ©2016 Integrated Device Technology, Inc. Revision 5, December 8, 2016 82P33731 Datasheet 2 PIN DESCRIPTION Table 1: Pin Description Pin No. Name I/O Type Description Global Control Signal E1 OSCI I CMOS OSCI: Crystal Oscillator System Clock A clock provided by a crystal oscillator is input on this pin. It is the system clock for the device. The oscillator frequency is selected via pins XO_FREQ0 ~ XO_FREQ2 K8 MS/SL I pull-up CMOS MS/SL: Master / Slave Selection This pin, together with the MS_SL_CTRL bit, controls whether the device is configured as the Master or as the Slave. The signal level on this pin is reflected by the MASTER_SLAVE bit. A11 SONET/SDH/ LOS3 I pull-down CMOS SONET/SDH: SONET / SDH Frequency Selection During reset, this pin determines the default value of the IN_SONET_SDH bit (b2, 09H): High: The default value of the IN_SONET_SDH bit is ‘1’ (SONET); Low: The default value of the IN_SONET_SDH bit is ‘0’ (SDH). After reset, this pin takes on the operation of LOS3 LOS3- This pin is used to disqualify input clocks. See input clocks section for more details. K6 RSTB I pull-up CMOS RSTB: Reset Refer to section 2.2 reset operation for detail. H1 J1 J2 XO_FREQ0/ LOS0 XO_FREQ1/ LOS1 XO_FREQ2/ LOS2 I pull-down CMOS XO_FREQ0 ~ XO_FREQ2: These pins set the oscillator frequency. XO_FREQ[2:0] Oscillator Frequency (MHz) 000 10.000 001 12.800 010 13.000 011 19.440 100 20.000 101 24.576 110 25.000 111 30.720 LOS0 ~ LOS2 - These pins are used to disqualify input clocks. See input clocks section for more details. After reset, this pin takes on the operation of LOS0-LOS2 Input Clock and Frame Synchronization Input Signal K10 IN1 I AMI IN1: Input Clock 1 A 64 kHz + 8 kHz or 64 kHz + 8 kHz + 0.4 kHz composite clock is input on this pin. AMI input has internal 1k ohm to 1.5V termination. K9 IN2 I AMI IN2: Input Clock 2 A 64 kHz + 8 kHz or 64 kHz + 8 kHz + 0.4 kHz composite clock is input on this pin. AMI input has internal 1k ohm to 1.5V termination. M12 M11 IN3_POS IN3_NEG I PECL/LVDS IN3_POS / IN3_NEG: Positive / Negative Input Clock 3 A reference clock is input on this pin.This pin can also be used as a sync input, and in this case a 2 kHz, 4 kHz, 8 kHz, or 1PPS signal can be input on this pin. L12 L11 IN4_POS IN4_NEG I PECL/LVDS IN4_POS / IN4_NEG: Positive / Negative Input Clock 4 A reference clock is input on this pin.This pin can also be used as a sync input, and in this case a 2 kHz, 4 kHz, 8 kHz, or 1PPS signal can be input on this pin. K12 K11 IN5_POS IN5_NEG I PECL/LVDS IN5_POS / IN5_NEG: Positive / Negative Input Clock 5 A reference clock is input on this pin.This pin can also be used as a sync input, and in this case a 2 kHz, 4 kHz, 8 kHz, or 1PPS signal can be input on this pin. J12 J11 IN6_POS IN6_NEG I PECL/LVDS IN6_POS / IN6_NEG: Positive / Negative Input Clock 6 A reference clock is input on this pin.This pin can also be used as a sync input, and in this case a 2 kHz, 4 kHz, 8 kHz, or 1PPS signal can be input on this pin. G12 G11 IN7_POS IN7_NEG I PECL/LVDS IN7_POS / IN7_NEG: Positive / Negative Input Clock 7 A reference clock is input on this pin.This pin can also be used as a sync input, and in this case a 2 kHz, 4 kHz, 8 kHz, or 1PPS signal can be input on this pin. F12 F11 IN8_POS IN8_NEG I PECL/LVDS IN8_POS / IN8_NEG: Positive / Negative Input Clock 8 A reference clock is input on this pin.This pin can also be used as a sync input, and in this case a 2 kHz, 4 kHz, 8 kHz, or 1PPS signal can be input on this pin. |
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