WM8720EDS/R WOLFSON [Wolfson Microelectronics plc], WM8720EDS/R Datasheet
WM8720EDS/R
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WM8720EDS/R Summary of contents
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Stereo DAC with Volume Control DESCRIPTION The WM8720 is a high performance stereo DAC designed for audio applications such as CD, DVD, home theatre systems, set top boxes and digital TV. The WM8720 supports data input word ...
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... RSTB 7 14 ZERO 8 13 VOUTR 9 12 AGND 10 11 ORDERING INFORMATION TEMPERATURE DEVICE RANGE o WM8720EDS -25 to +85 o WM8720EDS/R -25 to +85 o WM8720SEDS -25 to +85 o WM8720SEDS/R -25 to +85 Note: Reel quantity = 2,000 w DGND DVDD MODE MUTE LRCIN DIN BCKIN CAP VOUTL AVDD MOISTURE SENSITIVITY ...
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WM8720 PIN DESCRIPTION PIN NAME 1 PWDN 2 SCKI 3 TEST 4 ML/I2S 5 MC/IWL 6 MD/DM 7 RSTB 8 ZERO 9 VOUTR Analogue output 10 AGND 11 AVDD 12 VOUTL Analogue output 13 CAP Analogue output 14 BCKIN 15 ...
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WM8720 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 Characteristics ...
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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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WM8720 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 BCY BCKIN pulse width high t BCH ...
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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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WM8720 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 hardware ...
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WM8720 AUDIO DATA INTERFACE The Serial Data interface to WM8720 is fully compatible with both normal (MSB first, right-justified interfaces. Data may be ‘packed’ (number of serial bit clocks per LRCIN period is exactly 2 times ...
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WM8720 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 be ...
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WM8720 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 the pin high causes the filters to soft ...
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WM8720 REGISTER MAP WM8720 controls the special functions using 4 program registers, which are 16-bits long. These registers are all loaded through input pin MD/DM. After the 16 data bits are clocked in, ML/I2S/IWL is used to latch in the ...
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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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WM8720 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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WM8720 PACKAGE DIMENSIONS DS: 20 PIN SSOP (7.2 x 5.3 x 1.75 mm Dimensions Symbols (mm) MIN NOM A ----- A 0. 1.65 1. 0.22 c 0.09 D 6.90 ...
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