SI52147 SILABS [Silicon Laboratories], SI52147 Datasheet

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... Multi-function printer  Description The Si52147 is a spread-controlled PCIe clock generator that can source nine PCIe clocks simultaneously. The device has six hardware output enable control inputs for enabling the respective differential outputs on the fly while powered on along with the hardware spread control for EMI reduction ...

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... Si52147 2 Preliminary Rev. 0.1 ...

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... PDB (Power down) Assertion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 2.4. PDB Deassertion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 2.5. OE Clarification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 2.6. OE Assertion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 2.7. OE Deassertion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 2.8. SSON Clarification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 3. Test and Measurement Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 4. Control Registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 4.1. Serial Data Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 4.2. Data Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 5. Pin Descriptions: 48-Pin QFN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 6. Ordering Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 7. Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 Contact Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Preliminary Rev. 0.1 Si52147 Page 3 ...

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... Si52147 1. Electrical Specifications Table 1. DC Electrical Specifications Parameter Symbol 3.3 V Operating Voltage VDD core 3.3 V Input High Voltage 3.3 V Input Low Voltage Input High Voltage V Input Low Voltage V Input High Leakage Current Input Low Leakage Current 3.3 V Output High Voltage (SE) 3.3 V Output Low Voltage (SE) ...

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... High Band,1.5 MHz < F < Nyquist Includes PLL BW 2–4 MHz, GEN3 CDR = 10 MHz Measured differential ACC /T Measured differentially from R F ±150 mV HIGH LOW Preliminary Rev. 0.1 Si52147 Min Typ Max — — 250 47 — 53 and 0.5 — 4.0 DD — — 250 — ...

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... Si52147 Table 3. Absolute Maximum Conditions Parameter Main Supply Voltage Input Voltage Temperature, Storage Temperature, Operating Ambient Temperature, Junction Dissipation, Junction to Case Dissipation, Junction to Ambient ESD Protection (Human Body Model) Flammability Rating Moisture Sensitivity Level Note: While using multiple power supplies, the voltage on any input or I/O pin cannot exceed the power pin during power-up. ...

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... Trim capacitors are calculated to provide equal capacitive loading on both sides. Table 4. Crystal Recommendations Shunt Motional Cap (max) (max) 12– 0.016 pF Figure 2. Crystal Loading Example Preliminary Rev. 0.1 Si52147 Tolerance Stability Aging (max) (max) (max) 35 ppm 30 ppm 5 ppm 7 ...

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... Si52147 Use the following formulas to calculate the trim capacitor values for Ce1 and Ce2. Load Capacitance (each side – (Cs + Ci) Total Capacitance (as seen by the crystal CLe ( 1 + Ce1 + Cs1 + Ci1 Ce2 + Cs2 + Ci2 CL: Crystal load capacitance  CLe: Actual loading seen by crystal using standard value trim capacitors  ...

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... " Figure 3. 0.7 V Differential Load Configuration Figure 4. Differential Output Signals (for AC Parameters Measurement 0 0 Preliminary Rev. 0.1 Si52147 ...

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... Si52147 V MIN Figure 5. Single-ended Measurement for Differential Output Signals 10 = –0.30V V = –0.30V MIN (for AC Parameters Measurement) Preliminary Rev. 0.1 ...

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... Acknowledge from slave 37:30 Byte Count from slave–8 bits 38 Acknowledge 46:39 Data byte 1 from slave–8 bits 47 Acknowledge 55:48 Data byte 2 from slave–8 bits 56 Acknowledge .... Data bytes from slave/Acknowledge .... Data Byte N from slave–8 bits .... NOT Acknowledge .... Stop Preliminary Rev. 0.1 Si52147 Description 11 ...

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... Si52147 Table 6. Byte Read and Byte Write Protocol Byte Write Protocol Bit Description 1 Start 8:2 Slave address–7 bits 9 Write 10 Acknowledge from slave 18:11 Command Code–8 bits 19 Acknowledge from slave 27:20 Data byte–8 bits 28 Acknowledge from slave 29 Stop 12 Byte Read Protocol Bit ...

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... DIFF1_OE Output Enable for DIFF1. 0: Output disabled. 1: Output enabled. 1 DIFF2_OE Output Enable for DIFF2. 0: Output disabled. 1: Output enabled. 0 DIFF3_OE Output Enable for DIFF3. 0: Output disabled. 1: Output enabled R/W R/W R/W Function DIFF0_OE R/W R/W R/W Function Preliminary Rev. 0.1 Si52147 R/W R/W R DIFF1_OE DIFF2_OE DIFF3_OE R/W R/W R/W 13 ...

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... Si52147 Control Register 2. Byte 2 Bit D7 D6 DIFF4_OE DIFF5_OE Name R/W R/W Type Reset settings = 11111000 Bit Name 7 DIFF4_OE Output Enable for DIFF4. 0: Output disabled. 1: Output enabled. 6 DIFF5_OE Output Enable for DIFF5. 0: Output disabled. 1: Output enabled. 5 DIFF6_OE Output Enable for DIFF6. 0: Output disabled. 1: Output enabled. ...

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... Type Reset settings = 00001000 Bit Name 7:4 Rev Code[3:0] Program Revision Code. Vendor ID[3:0] 3:0 Vendor Identification Code. Control Register 4. Byte 4 Bit D7 D6 Name R/W R/W Type Reset settings = 00000110 Bit Name 7:0 BC[7:0] Byte Count Register R/W R/W R/W Function BC[7:0] R/W R/W R/W Function Preliminary Rev. 0.1 Si52147 Vendor ID[3:0] R/W R/W R R/W R/W R/W 15 ...

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... Si52147 Control Register 5. Byte 5 Bit D7 D6 Name DIFF_Amp_Sel DIFF_Amp_Cntl[2] DIFF_Amp_Cntl[1] DIFF_Amp_Cntl[0] R/W R/W Type Reset settings = 11011000 Bit Name 7 DIFF_Amp_Sel 6 DIFF_Amp_Cntl[2] 5 DIFF_Amp_Cntl[1] 4 DIFF_Amp_Cntl[0] 3:0 Reserved 16 D5 R/W Function Amplitude Control for DIFF Differential Outputs. 0: Differential outputs with Default amplitude. 1: Differential outputs amplitude is set by Byte 5[6:4]. DIFF Differential Outputs Amplitude Adjustment. ...

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... Description 3.3 V input to disable DIFF0 (internal 100 k pull-up). Refer to Table 1 on page 4 for OE specifications. 3.3 V input to disable DIFF1 (internal 100 k pull-up). Refer to Table 1 on page 4 for OE specifications. 100 k pull-down) Preliminary Rev. 0.1 Si52147 38 37 DIFF8 36 DIFF8 35 34 VDD DIFF7 33 ...

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... Si52147 Table 7. Part Number 48-Pin QFN Descriptions Pin # Name Type GND Ground 7 VSS I,PU 8 OE2 I,PU 9 OE3 I,PU 10 OE[4:5] I,PU 11 OE[6:8] PWR 3.3 V Power Supply 12 VDD PWR 3.3 V Power Supply 13 VDD O, DIF 0.7 V, 100 MHz differential clock 14 DIFF0 O, DIF 0.7 V, 100 MHz differential clock 15 DIFF0 VSS 16 VSS O, DIF 0.7 V, 100 MHz differential clock ...

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... Description SMBus compatible SCLOCK SMBus compatible SDATA down (PDB) and disabling all outputs (internal 100 k pull-up). 25.00 MHz Crystal output, Float XOUT if using only CLKIN (Clock input) 25.00 MHz Crystal input or 3 MHz Clock Input No Connect No Connect No Connect No Connect Preliminary Rev. 0.1 Si52147 19 ...

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... Si52147 6. Ordering Guide Part Number Lead-free Si52147-A01AGM Si52147-A01AGMR 20 Package Type 48-pin QFN 48-pin QFN—Tape and Reel Preliminary Rev. 0.1 Temperature Industrial, – C Industrial, – C ...

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... Package Outline Figure 6 illustrates the package details for the Si52147. Table 8 lists the values for the dimensions shown in the illustration. Figure 6. 48-Pin Quad Flat No Lead (QFN) Package Table 8. Package Diagram Dimensions Symbol aaa bbb ccc ddd Notes: 1 ...

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... Si52147 C I ONTACT NFORMATION Silicon Laboratories Inc. 400 West Cesar Chavez Austin, TX 78701 Tel: 1+(512) 416-8500 Fax: 1+(512) 416-9669 Toll Free: 1+(877) 444-3032 Please visit the Silicon Labs Technical Support web page: https://www.silabs.com/support/pages/contacttechnicalsupport.aspx and register to submit a technical support request. The information in this document is believed to be accurate in all respects at the time of publication but is subject to change without notice. ...