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ES1946S Scheda tecnica(PDF) 3 Page - List of Unclassifed Manufacturers |
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ES1946S Scheda tecnica(HTML) 3 Page - List of Unclassifed Manufacturers |
3 / 4 page ESS Technology, Inc. SAM0217-030601 3 ES1946 PRODUCT BRIEF ES1946 PIN DESCRIPTION Table 1 lists the ES1946 pin descriptions. Table 1 ES1946 Pin Descriptions Names Pin Numbers I/O Descriptions VDDD 1, 17, 64, 80 I Digital supply voltage (3.0V ± 3.6V). AD[31:0] 2:7, 9:16, 69:76, 79, 82:88, 98, 99 I/O Address and data lines from the PCI bus. CBE[3:0]B 8, 77, 89, 97 I/O PCI command/byte enable. XO 18 O Oscillator output. Connect to external 14.318-MHz crystal. XI 19 I Oscillator/external clock input. Connect to external 14.318-MHz crystal or clock source (must be CMOS levels). VOLDN 20 I Active-low volume decrease button input with internal pull-up. SECS O Serial EEPROM chip select. VOLUP 21 I Active-low volume increase button input with internal pull-up. SEDI O Serial data output to EEPROM. MCLK 22 I Input with internal pull-down. Music serial clock from external wavetable music synthesizer. IISCLK I Serial shift clock for I2S interface. MSD 23 I Input with internal pull-down. Music serial data from external wavetable music synthesizer. IISDATA I Serial data for I2S interface. IIS and hardware wavetable cannot coexist. GNDD 24, 52, 81, 100 I Digital ground. MONO_OUT 25 O Mono output with source select and volume control (including mute). This pin can drive an external 5k Ω AC load. MONO_IN 26 I Mono input to mixer and ADC. This pin has an internal pull-up to CMR. T(A-D) 30:27 I/O Joystick timer pins. These pins connect to the X-Y positioning variable resistors for the two joysticks. 5V-tolerant. SW(A-D) 31:34 I Active-low joystick switch setting inputs. These SW pins have internal pull-up resistors. 5V-tolerant pins. AUXB_L, AUXB_R 35, 36 I Auxiliary B inputs, left and right. AUXB_L and AUXB_R have internal pull-up resistors to CMR. AUXA_L, AUXA_R 37, 38 I Auxiliary A inputs, left and right. AUXA_L and AUXA_R have internal pull-up resistors to CMR. CMR 39 O Common mode reference voltage (2.25V ± 5%). Bypass this pin to analog ground with 47- µF electrolytic in parallel with a 0.1-µF capacitor. MIC 40 I Microphone input. MIC has an internal pull-up resistor to CMR. GNDA 41 I Analog ground. CAP3D 42 I Bypass capacitor to analog ground for 3D effects. VDDA 43 I Analog supply voltage (5V ± 5%). Must be greater than or equal to VDDD–0.3V. FOUT_R, FOUT_L 44, 45 O Filter outputs, right and left. AC-coupled externally to CIN_R and CIN_L to remove DC offsets. CIN_L, CIN_R 46, 47 I ADC and first channel DAC mixer inputs. These pins have internal 50k Ω pull-up resistors to CMR. LINE_L, LINE_R 48, 49 I Line inputs, left and right. LINE_L and LINE_R have internal pull-up resistors to CMR. AOUT_L, AOUT_R 50, 51 O Line-level stereo outputs, left and right. These pins can drive a 5k Ω AC load. |
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