 |
Electronic Components Datasheet Search |
|
|
Electronic Components Datasheet Search |
|
MAX97000 Datasheet(PDF) 23 Page - Maxim Integrated Products |
|
||||||||||||||||||||||||||||||
MAX97000 Datasheet(HTML) 23 Page - Maxim Integrated Products |
|
|
23 / 33 page 
Audio Subsystem with Mono Class D Speaker and Class H Headphone Amplifier 23 I2C Registers Nine internal registers program the MAX97000. Table 1 lists all the registers, their addresses, and power-on- reset states. Register 0xFF indicates the device revision. Write zeros to all unused bits in the register table when updating the register, unless otherwise noted. Tables 2 through 7 describe each bit. Table 1. Register Map Table 2. Input Register REGISTER B7 B6 B5 B4 B3 B2 B1 B0 ADDRESS DEFAULT R/W STATUS Input Gain INADIFF INBDIFF PGAINA PGAINB 0x00 0x00 R/W Headphone Mixers HPLMIX HPRMIX 0x01 0x00 R/W Speaker Mixer 0 0 0 0 SPKMIX 0x02 0x00 R/W Headphone Left ZCD SLEW HPLM HPLVOL 0x03 0x00 R/W Headphone Right LPGAIN 0 HPRM HPRVOL 0x04 0x00 R/W Speaker FFM SPKM SPKVOL 0x05 0x00 R/W Reserved 0 0 0 0 0 0 0 0 0x06 0x00 R/W Limiter THDCLP 0 0 0 THDT1 0x07 0x00 R/W Power Management SHDN LPMODE SPKEN 0 HPLEN HPREN SWEN 0x08 0x01 R/W Charge Pump 0 0 0 0 0 0 CPSEL FIXED 0x09 0x00 R/W REVISION ID Rev ID REV 0xFF 0x00 R REGISTER BIT NAME DESCRIPTION 0x00 7 INADIFF Input A Differential Mode. Configures the input A channel as either a mono differential signal (INA = INA2 - INA1) or as a stereo signal (INA1 = left, INA2 = right). 0 = Stereo single-ended 1 = Differential 6 INBDIFF Input B Differential Mode. Configures the input B channel as either a mono differential signal (INB = INB2 - INB1) or as a stereo signal (INB1 = left, INB2 = right). 0 = Stereo single-ended 1 = Differential 5 PGAINA Input A Preamp Gain. Set the input gain to maximize output signal level for a given input signal range to improve the SNR of the system. PGAINA = 111 switches to a trimmed 20kI feedback resistor for external gain setting. 4 VALUE 000 001 010 011 100 101 110 111 LEVEL (dB) -6 -3 0 3 6 9 18 External 3 |
|
English ▼
Chinese
German
Japanese
Russian
Korean
Spanish
French
Italian
Portuguese
Polish
Vietnamese
