WM8720EDS WOLFSON [Wolfson Microelectronics plc], WM8720EDS Datasheet
WM8720EDS
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WM8720EDS Summary of contents
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... WM8720 SIGMA DELTA DAC MODULATOR SIGMA DELTA DAC MODULATOR (10) (13) (11) (19) AGND CAP AVDD DVDD Production Data Datasheets contain final specifications current on publication date. Supply of products conforms to Wolfson Microelectronics’ Terms and Conditions. 2000 Wolfson Microelectronics Ltd (3) TEST (8) ZERO (9) VOUTR (12) VOUTL . ...
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... BCKIN 15 DIN 16 LRCIN 17 MUTE 18 MODE 19 DVDD 20 DGND Note: Digital input pins have Schmitt trigger input buffers. WOLFSON MICROELECTRONICS LTD ORDERING INFORMATION DEVICE 20 DGND WM8720EDS 19 DVDD 18 MODE 17 MUTE 16 LRCIN 15 DIN 14 BCKIN 13 CAP 12 VOUTL 11 AVDD TYPE Digital input Powerdown control; low is ON, high is POWER OFF. Internal pull-down. ...
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Production Data ABSOLUTE MAXIMUM RATINGS Absolute Maximum Ratings are stress ratings only. Permanent damage to the device may be caused by continuously operating at or beyond these limits. Device functional operating limits and guaranteed performance specifications are given under Electrical ...
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WM8720 ELECTRICAL CHARACTERISTICS Test Conditions AVDD, DVDD = 5V, AGND, DGND = 0V, T PARAMETER SYMBOL DAC Circuit Specifications SNR (Note 1) THD Dynamic range Passband Stopband Pass band ripple Out of band rejection Channel Separation Gain mismatch channel-to-channel Digital ...
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Production Data LRCIN BCKIN DIN Figure 1 Audio Data Input Timing Test Conditions AVDD, DVDD = 5V, AGND, DGND = 0V, T PARAMETER SYMBOL Audio Data Input Timing Information BCKIN pulse cycle time t BCKIN pulse width high t BCKIN ...
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WM8720 ML/12S MC/IWL MD/DM Figure 3 Program Register Input Timing Test Conditions AVDD, DVDD = 5V, AGND, DGND = 0V, T PARAMETER Program Register Input Information MC/IWL pulse cycle time MC/IWL pulse width low MD/DM pulse width high MD/DM set-up ...
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Production Data DEVICE DESCRIPTION WM8720 is a complete stereo audio digital-to-analogue converter, including digital interpolation filter, multibit sigma delta with dither, switched capacitor multibit stereo DAC and output smoothing filters. Control of internal functionality of the device is by either ...
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WM8720 LRCIN BCKIN DIN Figure 4 Normal Data Input Timing LRCIN BCKIN DIN Figure 5 I WOLFSON MICROELECTRONICS LTD LEFT CHANNEL MSB LEFT CHANNEL n-2 n-1 n MSB LSB 2 S Data Input Timing ...
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Production Data MODES OF OPERATION Control of the various modes of operation is either by software control over the serial interface hard-wired pin control. Selection of software or hardware mode is via MODE pin. The following functions may ...
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WM8720 MU (Register Bit) Figure 6 Mute Circuit Operation The MUTE pin behaves as a bi-directional function, that is input to select mute or NOT-mute output indication of automute operation. MUTE is active high; taking ...
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Production Data SOFTWARE CONTROL INTERFACE The WM8720 can be controlled using a 3-wire serial interface. MD/DM (pin 6) is used for the program data, MC/IWL (pin 5) is used to clock in the program data and ML/I2S (pin 4) is ...
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WM8720 Table 9 Attenuation Control Levels Bit 8 in register 0 (LDL) is used to control the loading of attenuation data in AL[7:0]. When LDL is set to 0, attenuation data will be loaded into AL[7:0], but it will not ...
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Production Data DAC OUTPUT CONTROL Bits and 8 (PL[3:0]) of register 2 are used to control the output format as shown in Table 11. PL3 ...
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WM8720 RECOMMENDED EXTERNAL COMPONENTS Software I/F or Hardware Control Pins Audio Serial Data I/F NOTES: 1. AGND and DGND should be connected as close to the WM8720 as possible and C should be positioned as close ...
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Production Data PACKAGE DIMENSIONS DS: 20 PIN SSOP (7.2 x 5.3 x 1.75 mm Dimensions Symbols MIN A ----- 0.22 c 0.09 D 6.90 e 0.65 ...