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WM5102 Datasheet(PDF) 99 Page - Wolfson Microelectronics plc |
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WM5102 Datasheet(HTML) 99 Page - Wolfson Microelectronics plc |
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99 / 334 page  Production Data WM5102 w PD, June 2014, Rev 4.2 99 The EQ, LHPF and DRC functions can be enabled in any signal path within the digital core. The sample rate for these functions is configured using the FX_RATE register. Note that the EQ, DRC and LHPF functions must all be configured for the same sample rate. The DSP functions can be enabled in any signal path within the digital core. The applicable sample rates are configured using the DSP1_RATE register. The tone generators and noise generator can be selected as input to any of the digital mixers or signal processing functions. The sample rates for these sources are configured using the TONE_RATE and NOISE_GEN_RATE registers respectively. The haptic signal generator can be used to control an external vibe actuator, which can be driven directly by the Class D speaker output. The sample rate for the haptic signal generator is configured using the HAP_RATE register. The PWM signal generators can be modulated by an audio source, derived from the associated signal mixers. The sample rate (cycle time) for the PWM signal generators is configured using the PWM_RATE register. The sample rate control registers are described in Table 21. Refer to the register descriptions for details of the valid selections in each case. Note that the input (ADC) and output (DAC) signal paths must always be associated with the SYSCLK clocking domain and are therefore synchronous to each other. The control registers associated with the ASRC and ISRCs are described in Table 22 and Table 23 respectively within the following sections. REGISTER ADDRESS BIT LABEL DEFAULT DESCRIPTION R32 (0020h) Tone Generator 1 14:11 TONE_RATE [3:0] 0000 Tone Generator Sample Rate 0000 = SAMPLE_RATE_1 0001 = SAMPLE_RATE_2 0010 = SAMPLE_RATE_3 1000 = ASYNC_SAMPLE_RATE_1 1001 = ASYNC_SAMPLE_RATE_2 All other codes are Reserved. The selected sample rate is valid in the range 8kHz to 192kHz. R48 (0030h) PWM Drive 1 14:11 PWM_RATE [3:0] 0000 PWM Frequency (sample rate) 0000 = SAMPLE_RATE_1 0001 = SAMPLE_RATE_2 0010 = SAMPLE_RATE_3 1000 = ASYNC_SAMPLE_RATE_1 1001 = ASYNC_SAMPLE_RATE_2 All other codes are Reserved. The selected sample rate is valid in the range 4kHz to 192kHz. R112 0070h) Comfort Noise Generator 14:11 NOISE_GEN_RA TE [3:0] 0000 Noise Generator Sample Rate 0000 = SAMPLE_RATE_1 0001 = SAMPLE_RATE_2 0010 = SAMPLE_RATE_3 1000 = ASYNC_SAMPLE_RATE_1 1001 = ASYNC_SAMPLE_RATE_2 All other codes are Reserved. The selected sample rate is valid in the range 4kHz to 192kHz. |
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