SI4777-A20-GMR

Si 4770/ 77- A20 H I G H - P ERFORMANCE C ONSUMER E LECTRONICS B R O A D C AST R ADIO R ECEIVER AND H D R ADIO T UNER Features            Digital (I2S) Zero-IF AM/FM I/Q outputs (Si4777 only) 1.2 to 5 V power supplies QFN 40-pin, 6x6x0.85 mm DACREF XTAL1 RCLK/ XTAL2 ROUT LOUT/ MPXOUT VA 36 35 34 33 32 31 NC/BLEND 29 DCLK FMXIN 3 28 DFS RFGND 4 27 DOUT RFREG 5 26 NC/QOUT FMO 6 25 NC/IOUT FMI 7 24 NC/IQFS NC 8 23 NC/IQCLK NC 9 22 VIO2 AMI 10 21 DBYP GND PAD 13 14 15 16 17 18 19 20 A1/INTB NC/DCLK2 NC/DOUT2 RSTB SDA SCL INTB/DFS2 VIO1 VD Description 30 2 A0  Boom boxes Home theater systems 1 12  NC FMXIP 11  Audio/video receivers Consumer electronics 37 compliant Si4770/77-A20 GPIO2 Pb-free/RoHS Applications  Pin Assignments 38  Ordering Information: See page 49. GPIO1  L/R analog and digital (I2S) audio outputs Digital Low-IF architecture Frequency synthesizer with fully integrated PLL-VCO Fully integrated AM/FM front-end including high performance LNA, AGC with integrated resistor and capacitor banks, and RF and IF peak detectors Integrated crystal oscillator 39   40   AM/FM hi-cut control AM lo-cut filter FMAGC2   FMAGC1  Worldwide FM band support (64–108 MHz) Worldwide AM band support (520–1710 kHz) AM/FM HD Radio support (Si4777 only) Comprehensive signal quality metrics: RSSI, SNR, multipath interference, frequency offset, adjacent channel RSSI, frequency deviation, and image RSSI Advanced patented RDS softdecision decoder Advanced, patented FM channel equalizer for multipath interference Dynamic AM/FM channel bandwidth control Programmable AM/FM soft mute FM stereo-mono blend FM hi-blend control Patents pending The Si4770/77-A20 broadcast receiver and HD Radio tuner (Si4777 only) employs an advanced, proven digital low-IF architecture to bring outstanding receiver performance to high-performance consumer electronics. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.9 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 1, 2021 Si 4770/ 77-A 20 IQFS IOUT QOUT IQCLK FMAGC2 FMAGC1 Functional Block Diagram Si4770/77 ADC FMXIP FMXIN ADC RFREG LOUT/ MPXOUT DAC ROUT DSP IF PKD RF PKD DAC REG RL FMO FMI LNA DCLK DFS DOUT 0°/90° RDS RF PKD RF PKD INTB RSTB AMI 2 VIO1 SCL A1 SDA A0 VIO2 XTAL1 RFGND CNTRL ClK Gen XTAL2/ RCLK LNA Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.9 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 1, 2021 Si4770/77-A20 TA B L E Section OF C ONTENTS Page 1. Electrical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 2. Typical Application Schematic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 3. Bill of Materials . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 4. Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 4.1. Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 4.2. Clocking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 4.3. Tuning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 4.4. FM Receiver Front-End . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26 4.5. AM Receiver Front-End . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27 4.6. Received Signal Qualifiers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 4.7. Digital Audio Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 4.8. Channel Equalizer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 4.9. Digital ZIF I/Q Interface (Si4777 Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31 4.10. IBOC Blend Mode for HD Radio (Si4777 Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . 36 4.11. Stereo Audio Processing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 4.12. De-emphasis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 4.13. Analog Audio and FM MPX . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41 4.14. Soft Mute . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41 4.15. AM/FM Dynamic Bandwidth Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 4.16. Seek and Valid Station Qualification . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 4.17. AM Hi-Cut Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 4.18. FM Hi-Cut Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 4.19. FM Hi-Blend . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 4.20. AM Lo-Cut . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42 5. RDS/RBDS Advanced Processor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 6. Programming Section . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .43 7. I2C Control Bus . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 7.1. I2C Device Address Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 7.2. I2C Standard Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 8. Reset, Powerup, and Powerdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46 9. Pin Descriptions: Si4770/77-A20 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47 10. Ordering Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49 11. Package Outline . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50 12. PCB Land Pattern . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51 13. Top Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 13.1. Si4770/77-A20 Top Marking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 13.2. Top Marking Explanation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 3 Rev. 0.9 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 1, 2021 Si 4770/ 77-A 20 1. Electrical Specifications Table 1. Recommended Operation Conditions* Parameter Symbol Test Condition Min Typ Max Unit Analog Supply Voltage VA — 4.5 5 5.5 V Digital Supply Voltage VD — 2.7 3.3 3.6 V VIO1 — 1.7 3.3 3.6 V VIO2 — 1.2 3.3 3.6 V Interface Supply Voltage *Note: All minimum and maximum specifications are guaranteed and apply across the recommended operating conditions. Typical values apply at VD = 3.3 V, VIO1 = 3.3 V, VIO2 = 3.3 V, VA = 5 V, and 25 °C unless otherwise stated. Parameters are tested in production unless otherwise stated. Table 2. DC Characteristics (TAMB = –40 to 85 °C, VA = 4.5 to 5.5 V, VD = 2.7 to 3.6 V, VIO1 = 1.7 to 3.6 V, VIO2 = 1.2 to 3.6 V) Parameter Symbol Test Condition Min Typ Max Unit 671 850 1049 mW FM Mode Total Supply Power VA Supply Current IVA  121 130 139 mA VD Supply Current IVD  47 60 79 mA VA Supply Power Down Current IVA 20 90 170 µA VD Supply Power Down Current IVD 5 20 50 µA 707 900 1100 mW AM Mode Total Supply Power VA Supply Current IVA  129 140  147 mA VD Supply Current IVD  47 60 81 mA VA Supply Power Down Current IVA 20 90 170 µA VD Supply Power Down Current IVD 5 20 50 µA *Note: See "7. I2C Control Bus" on page 44. 4 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.9 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 1, 2021 Si4770/77-A20 Table 2. DC Characteristics (Continued) (TAMB = –40 to 85 °C, VA = 4.5 to 5.5 V, VD = 2.7 to 3.6 V, VIO1 = 1.7 to 3.6 V, VIO2 = 1.2 to 3.6 V) Parameter Symbol Test Condition Min Typ Max Unit Interface Supplies VIO1 Supply Current IVIO1 0.1 0.5 0.82 mA VIO2 Supply Current IVIO2 0.1 0.2  0.5 mA VIO1 Supply Power Down Current* IPD 150 250  420 µA VIO2 Supply Power Down Current* IPD 5 20 150 µA Inputs Pins SCL, SDA, RSTB, A0, A1 High Level Input Voltage VIH 0.7 x VIO1 — — V Low Level Input Voltage VIL — — 0.3xVIO1 V High Level Input Current IIH VIN = VI01 = 3.6 V  –10 — 10 µA Low Level Input Current IIL VIN = 0 = V, VI01 = 3.6 V  –10 — 10 µA Input Pins DCLK, DFS High Level Input Voltage VIH 0.7 x VIO2 — — V Low Level Input Voltage VIL — — 0.3 x VIO2 V High Level Input Current IIH VIN = VI02 = 3.6 V –10 — 10 µA Low Level Input Current IIL VIN = 0 V, VI02 = 3.6 V –10 — 10 µA 2.52 — — V — — 1.08 V Input Pins GPIO1, GPIO2 GPIO1 and GPIO2 are internally regulated at 3.6 V High Level Input Voltage VIH Low Level Input Voltage VIL High Level Input Current IIH VIN = 3.6 V –10 — 10 μA Low Level Input Current IIL VIN = 0 V –10 — 10 μA High Level Output Voltage VOH Output is common drain output with internal 10 k pullup to VIO1 0.8xVIO1 — — V Low Level Output Voltage VOL IOUT = –500 μA — — 0.2xVIO1 V Output Pins INTB *Note: See "7. I2C Control Bus" on page 44. Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 5 Rev. 0.9 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 1, 2021 Si 4770/ 77-A 20 Table 2. DC Characteristics (Continued) (TAMB = –40 to 85 °C, VA = 4.5 to 5.5 V, VD = 2.7 to 3.6 V, VIO1 = 1.7 to 3.6 V, VIO2 = 1.2 to 3.6 V) Parameter Symbol Test Condition Min Typ Max Unit High Level Output Voltage VOH Output is common drain output with external 4.7 k pull-up to VIO1 0.8xVIO1 — — V Low Level Output Voltage VOL IOUT = –500 μA — — 0.2xVIO1 V High Level Output Voltage VOH GPIO1 and GPIO2 are internally regulated at 3.6 V, IOUT = +500 μA 2.88 — — V Low Level Output Voltage VOL IOUT = –500 μA — — 0.72 V Output Pins SDA Output Pins GPIO1, GPIO2 Output Pins IQCLK, IQFS, IOUT, QOUT, DFS, DCLK, DOUT High Level Output Voltage VOH  IOUT = 500 µA 0.8 x VIO2 — — V Low Level Output Voltage VOL IOUT = –500 µA — — 0.2 x VIO2 V *Note: See "7. I2C Control Bus" on page 44. 6 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.9 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 1, 2021 Si4770/77-A20 Table 3. Digital Audio Interface Characteristics* (TAMB = –40 to 85 °C, VA = 4.5 to 5.5 V, VD = 2.7 to 3.6 V, VIO1 = 1.7 to 3.6 V, VIO2 = 1.2 to 3.6 V) Parameter Symbol Test Condition Min Typ Max Unit DCLK Input Cycle Time tCYC: DCLK 70 —   — ns DCLK Input Pulse Width High tHI: DCLK 0.4 x tCYC:DCLK —  0.6 x tCYC:DCLK ns DCLK Input Pulse Width Low tLO: DCLK 0.4 x tCYC:DCLK —  0.6 x tCYC:DCLK ns DFS Setup Time tSU:DFS 10 —  —  ns DFS Hold Time tHD:DFS 5 —  —  ns DOUT ouTput Delay tPD:DOUT 0 —  35 ns Capacitive Loading CB VIO2 < 1.33 V — — 10 VIO2 > 1.33 V — — 15 tHI:DCLK tLO:DCLK pF *Note: Guaranteed by characterization. tCYC:DCLK DCLK in tHD:DFS tSU:DFS DFS in tPD:DOUT DOUT out Figure 1. Digital Audio Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 7 Rev. 0.9 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 1, 2021 Si 4770/ 77-A 20 Table 4. Digital Zero-IF I/Q Interface Characteristics (Si4777 Only)1 (TAMB = –40 to 85 °C, VA = 4.5 to 5.5 V, VD = 2.7 to 3.6 V, VIO1 = 1.7 to 3.6 V, VIO2 = 1.2 to 3.6 V) Parameter Symbol Min Typ Max Unit tCYC:IQCLK 0.8 x per per2 1.2 x per ns IQCLK Output Pulse Width High tHI:IQCLK 0.22 x per — 0.59 x per ns IQCLK Output Pulse Width Low tLO:IQCLK 0.41 x per — 0.78 x per ns IQFS Output Delay tPD:IQFS 0 — (0.5 x per) + 18 ns IQFS Output Setup to IQCLK Rise3 tSU:IQFS (0.5 x per) – 18 — — ns IOUT Output Delay tPD:IOUT 0 — (0.5 x per) + 18 ns QOUT Output Delay tPD:QOUT 0 — (0.5 x per) + 18 ns IOUT Output Setup to IQCLK rise3 tSU:IOUT (0.5 x per) – 18 — — ns QOUT Output Setup to IQCLK Rise3 tSU:QOUT (0.5 x per) – 18 — — ns IQCLK Output Cycle Time Test Condition Notes: 1. Guaranteed by characterization. 2. per is the IQCLK I/Q bit clock period. Refer to Table 15 on page 35 for IQCLK bit clock frequencies. 3. Minimum time the Si4770/77-A20 will produce between valid output and the next rising edge of IQCLK tCYC:IQCLK Max tCYC:IQCLK Min IQCLK out tHI:IQCLK MIN tLO:IQCLK MAX tHI:IQCLK MAX tLO:IQCLK MIN tPD:IQFS MAX tSU:IQFS tPD:IQFS MIN IQFS out tPD:IOUT MAX tSU:IOUT tPD:IOUT MIN IOUT out tPD:QOUT MAX tSU:QOUT tPD:QOUT MIN QOUT out Figure 2. Digital Zero-IF I/Q 8 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.9 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 1, 2021 Si4770/77-A20 Table 5. Reference Clock and Crystal Characteristics Parameter Symbol Test Condition Min Typ Max Unit RCLK Supported Frequencies — 36.4 37.8 37.209375 — MHz RCLK Frequency Tolerance –100 — 100 ppm 100 Hz offset — — –86 dBc/Hz 1 kHz offset — — –101 dBc/Hz 10 kHz offset — — –108 dBc/Hz ≥ 100 kHz offset — — –122 dBc/Hz — 7 — pF 400 mVPP Reference Clock, Pin RCLK RCLK = 36.4 MHz, 37.8 MHz, 37.209375 MHz Phase Noise Input Capacitance Input Voltage AC coupling capacitor = 1 µF Square wave input AC coupling capacitor = 1 µF Sine wave input 300 — 900 mVPP Crystal Frequency — 36.4 37.8 37.209375 — MHz Crystal Frequency Tolerance –100 — 100 ppm 5 — 21.8 pF Crystal Oscillator, Pins XTAL1, XTAL2 Load Capacitance, Programmable, Each Pin to GND Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 9 Rev. 0.9 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 1, 2021 Si 4770/ 77-A 20 Table 6. I2C Control Interface Characteristics (TAMB = –40 to 85 °C, VA = 4.5 to 5.5 V, VD = 2.7 to 3.6 V, VIO1 = 1.7 to 3.6 V, VIO2 = 1.2 to 3.6 V) Parameter Symbol Test Condition Min Typ Max Unit Pins SCL, SDA SCL Frequency fSCL 0 — 400 kHz SCL Low Time tLOW 1.3 — — µs SCL High Time tHIGH 0.6 — — µs SCL Input to SDA  Setup (START) tSU:STA 0.6 — — µs SCL Input from SDA  Hold (START) tHD:STA 0.6 — — µs SDA Input to SCL  Setup tSU:DAT 100 — — ns SDA Input from SCL Hold tHD:DAT 0 — 900 ns SDA Output Delay tPD:DAT 300 — 900 ns SCL Input to SDA Setup (STOP) tSU:STO 0.6 — — µs STOP to START Time tBUF 1.3 — — µs SDA Output Fall Time tf:OUT — 250 ns — 300 ns SDA Input, SCL Rise/Fall Time tf:IN, tr:IN CB 20 + 0.1 ----------1pF CB 20 + 0.1 ----------1pF Capacitive Loading CB — — 50 pF Pulse Width Rejected by Input Filter tSP — — 50 ns 10 Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com Rev. 0.9 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 1, 2021 Si4770/77-A20 SCL SDA tSU:STA tHD:STA tLOW START tr:IN tHIGH tr:IN tf:IN tSP tSU:STO tBUF 70% 30% 70% 30% tHD:DAT tSU:DAT tf:IN, tf:OUT tPD:DAT STOP START Figure 3. I2C Control Interface Read and Write Timing Parameters SCL SDA (Write) Command 7-0 A6-A0, 0 START SDA (Read) ADDRESS + R/W ACK ADDRESS + R/W Figure 4. ACK Status 7-0 A6-A0, 1 START DATA Arg1 7-0 I2 ACK DATA DATA ACK STOP ACK STOP Response 7-0 ACK DATA C Control Interface Read and Write Timing Diagram Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com 11 Rev. 0.9 • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice • September 1, 2021 Si 4770/ 77-A 20 Table 7. FM Receiver Characteristics (TAMB = –40 to 85 °C, VA = 4.5 to 5.5 V, VD = 2.7 to 3.6 V, VIO1 = 1.7 to 3.6 V, VIO2 = 1.2 to 3.6 V. Typical values measured at TAMB = 25 °C, FM modulation (L = R), FMOD = 1 kHz, FDEV = 22.5 kHz, Deemphasis = 75 µsec, RF level = 60 dBµV, and FRF = 98 MHz in application circuit unless otherwise specified) Min Typ Max Unit Input Frequency Parameter 64 — 108 MHz Frequency Step Resolution 10 — 200 kHz — — 100 ms — 1.5 — ms At LOUT and ROUT pins — 20 — ms Audio THD