Datasheet ADAU1761 (Analog Devices) - 10

ADAU1761 Data Sheet DIGITAL FILTERS Table 5. Parameter Mode Factor Min Typ Max Unit
ADC DECIMATION FILTER All modes, typ @ 48 kHz Pass Band 0.4375 fS 21 kHz Pass-Band Ripple ±0.015 dB Transition Band 0.5 fS 24 kHz Stop Band 0.5625 fS 27 kHz Stop-Band Attenuation 67 dB Group Delay 22.9844/fS 479 µs DAC INTERPOLATION FILTER Pass Band 48 kHz mode, typ @ 48 kHz 0.4535 fS 22 kHz 96 kHz mode, typ @ 96 kHz 0.3646 fS 35 kHz Pass-Band Ripple 48 kHz mode, typ @ 48 kHz ±0.01 dB 96 kHz mode, typ @ 96 kHz ±0.05 dB Transition Band 48 kHz mode, typ @ 48 kHz 0.5 fS 24 kHz 96 kHz mode, typ @ 96 kHz 0.5 fS 48 kHz Stop Band 48 kHz mode, typ @ 48 kHz 0.5465 fS 26 kHz 96 kHz mode, typ @ 96 kHz 0.6354 fS 61 kHz Stop-Band Attenuation 48 kHz mode, typ @ 48 kHz 69 dB 96 kHz mode, typ @ 96 kHz 68 dB Group Delay 48 kHz mode, typ @ 48 kHz 25/fS 521 µs 96 kHz mode, typ @ 96 kHz 11/fS 115 µs
DIGITAL INPUT/OUTPUT SPECIFICATIONS
−40°C < TA < +85°C, IOVDD = 3.3 V ± 10%.
Table 6. Parameter Test Conditions/Comments Min Typ Max Unit
INPUT SPECIFICATIONS Input Voltage High (VIH) 0.7 × IOVDD V Input Voltage Low (VIL) 0.3 × IOVDD V Input Leakage Pull-Ups/Pull-Downs Disabled IIH @ VIH = 3.3 V −0.17 +0.17 µA IIL @ VIL = 0 V −0.17 +0.17 µA IIL @ VIL = 0 V (MCLK pin) −13.5 −0.5 µA Pull-Ups Enabled IIH @ VIH = 3.3 V −0.7 +0.7 µA IIL @ VIL = 0 V −13.5 −0.5 µA Pull-Downs Enabled IIH @ VIH = 3.3 V 2.7 8.3 µA IIL @ VIL = 0 V −0.18 +0.18 µA Input Capacitance 5 pF OUTPUT SPECIFICATIONS Output Voltage High (VOH) IOH = 2 mA @ 3.3 V, 0.85 mA @ 1.8 V 0.8 × IOVDD V Output Voltage Low (VOL) IOL = 2 mA @ 3.3 V, 0.85 mA @ 1.8 V 0.1 × IOVDD V Rev. D | Page 10 of 93 Document Outline Features Applications General Description Functional Block Diagram Revision History Specifications Analog Performance Specifications Power Supply Specifications Typical Current Consumption Typical Power Management Measurements Digital Filters Digital Input/Output Specifications Digital Timing Specifications Digital Timing Diagrams Absolute Maximum Ratings Thermal Resistance ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics System Block Diagrams Theory of Operation Startup, Initialization, and Power Power-Up Sequence Power Reduction Modes Digital Power Supply Input/Output Power Supply Clock Generation and Management Case 1: PLL Is Bypassed Case 2: PLL Is Used PLL Lock Acquisition Clocking and Sampling Rates Core Clock Sampling Rates PLL Integer Mode Fractional Mode Record Signal Path Input Signal Paths Analog Microphone Inputs Analog Line Inputs Digital Microphone Input Microphone Bias Analog-to-Digital Converters ADC Full-Scale Level Digital ADC Volume Control High-Pass Filter Automatic Level Control (ALC) ALC Parameters Noise Gate Function Playback Signal Path Output Signal Paths Routing Flexibility Headphone Output Capless Headphone Configuration Headphone Output Power-Up/Power-Down Sequencing Ground-Centered Headphone Configuration Jack Detection Pop-and-Click Suppression Line Outputs Control Ports Burst Mode Writing and Reading I2C Port Addressing I2C Read and Write Operations SPI Port Chip Address R/WB Subaddress Data Bytes Serial Data Input/Output Ports Applications Information Power Supply Bypass Capacitors GSM Noise Filter Grounding Exposed Pad PCB Design DSP Core Signal Processing Architecture Program Counter Features Startup Numeric Formats Numeric Format 5.23 Programming Program RAM, Parameter RAM, and Data RAM Program RAM Parameter RAM Data RAM Read/Write Data Formats Software Safeload Software Slew General-Purpose Input/Output GPIO Pins Set from the Control Port Control Registers Control Register Details R0: Clock Control, 16,384 (0x4000) R1: PLL Control, 16,386 (0x4002) R2: Digital Microphone/Jack Detection Control, 16,392 (0x4008) R3: Record Power Management, 16,393 (0x4009) R4: Record Mixer Left (Mixer 1) Control 0, 16,394 (0x400A) R5: Record Mixer Left (Mixer 1) Control 1, 16,395 (0x400B) R6: Record Mixer Right (Mixer 2) Control 0, 16,396 (0x400C) R7: Record Mixer Right (Mixer 2) Control 1, 16,397 (0x400D) R8: Left Differential Input Volume Control, 16,398 (0x400E) R9: Right Differential Input Volume Control, 16,399 (0x400F) R10: Record Microphone Bias Control, 16,400 (0x4010) R11: ALC Control 0, 16,401 (0x4011) R12: ALC Control 1, 16,402 (0x4012) R13: ALC Control 2, 16,403 (0x4013) R14: ALC Control 3, 16,404 (0x4014) R15: Serial Port Control 0, 16,405 (0x4015) R16: Serial Port Control 1, 16,406 (0x4016) R17: Converter Control 0, 16,407 (0x4017) R18: Converter Control 1, 16,408 (0x4018) R19: ADC Control, 16,409 (0x4019) R20: Left Input Digital Volume, 16,410 (0x401A) R21: Right Input Digital Volume, 16,411 (0x401B) R22: Playback Mixer Left (Mixer 3) Control 0, 16,412 (0x401C) R23: Playback Mixer Left (Mixer 3) Control 1, 16,413 (0x401D) R24: Playback Mixer Right (Mixer 4) Control 0, 16,414 (0x401E) R25: Playback Mixer Right (Mixer 4) Control 1, 16,415 (0x401F) R26: Playback L/R Mixer Left (Mixer 5) Line Output Control, 16,416 (0x4020) R27: Playback L/R Mixer Right (Mixer 6) Line Output Control, 16,417 (0x4021) R28: Playback L/R Mixer Mono Output (Mixer 7) Control, 16,418 (0x4022) R29: Playback Headphone Left Volume Control, 16,419 (0x4023) R30: Playback Headphone Right Volume Control, 16,420 (0x4024) R31: Playback Line Output Left Volume Control, 16,421 (0x4025) R32: Playback Line Output Right Volume Control, 16,422 (0x4026) R33: Playback Mono Output Control, 16,423 (0x4027) R34: Playback Pop/Click Suppression, 16,424 (0x4028) R35: Playback Power Management, 16,425 (0x4029) R36: DAC Control 0, 16,426 (0x402A) R37: DAC Control 1, 16,427 (0x402B) R38: DAC Control 2, 16,428 (0x402C) R39: Serial Port Pad Control, 16,429 (0x402D) R40: Control Port Pad Control 0, 16,431 (0x402F) R41: Control Port Pad Control 1, 16,432 (0x4030) R42: Jack Detect Pin Control, 16,433 (0x4031) R67: Dejitter Control, 16,438 (0x4036) R43 to R47: Cyclic Redundancy Check Registers, 16,576 to 16,580 (0x40C0 to 0x40C4) R48 to R51: GPIO Pin Control, 16,582 to 16,585 (0x40C6 to 0x40C9) R52 to R56: Watchdog Registers, 16,592 to 16,596 (0x40D0 to 0x40D4) R57: DSP Sampling Rate Setting, 16,619 (0x40EB) R58: Serial Input Route Control, 16,626 (0x40F2) R59: Serial Output Route Control, 16,627 (0x40F3) R60: Serial Data/GPIO Pin Configuration, 16,628 (0x40F4) R61: DSP Enable, 16,629 (0x40F5) R62: DSP Run, 16,630 (0x40F6) R63: DSP Slew Modes, 16,631 (0x40F7) R64: Serial Port Sampling Rate, 16,632 (0x40F8) R65: Clock Enable 0, 16,633 (0x40F9) R66: Clock Enable 1, 16,634 (0x40FA) Outline Dimensions Ordering Guide