AD1851 Analog Devices, AD1851 Datasheet
AD1851
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AD1851 Summary of contents
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... Synthesizers and Keyboards PRODUCT DESCRIPTION The AD1851/AD1861 is a monolithic PCM audio DAC. The AD1851 is a 16-bit device, while the AD1861 is an 18-bit de- vice. Each device provides a voltage output amplifier, DAC, serial-to-parallel register and voltage reference. The digital por- tion of the AD1851/AD1861 is fabricated with CMOS logic elements that are provided by Analog Devices’ ...
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... S LATCH DAC DGND 2 SERIAL + INPUT REGISTER NC 4 CLK 5 CONTROL LOGIC LE 6 DATA 7 AD1851 CONNECT AD1851 Functional Block Diagram (T @ +25 C and A Min Typ 2.0 1.5 1.0 9 350 350 2.88 8 0.1 Indefinite to Common 1.7 4.75 –5.25 0 +25 –25 – TRIM ...
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... TOTAL HARMONIC DISTORTION + NOISE 0 dB, 990.5 Hz AD1851N-J, R-J AD1851N, R –20 dB, 990.5 Hz AD1851N-J, R-J AD1851N, R –60 dB, 990.5 Hz AD1851N-J, R-J AD1851N, R D-RANGE* (With A-Weight Filter) –60 dB, 990.5 Hz AD1851N, R AD1851N-J, R-J SIGNAL-TO-NOISE RATIO MAXIMUM CLOCK INPUT FREQUENCY ACCURACY Differential Linearity Error MONOTONICITY POWER SUPPLY Current +I –I ...
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... Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ORDERING GUIDE Model Resolution THD + N AD1851N 16 Bits 0.008% AD1851N-J 16 Bits 0.004% AD1851R 16 Bits 0.008% AD1851R-J 16 Bits 0.004% AD1861N 18 Bits 0.008% AD1861N-J 18 Bits 0.004% AD1861R 18 Bits 0.008% AD1861R-J 18 Bits 0.004 Plastic DIP Package ...
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... The input register and serial-to-parallel converter are fabricated with CMOS logic gates. These gates allow the achievement of fast switching speeds and low power consumption. This contrib- utes to the overall low power dissipation of the AD1851/ AD1861. –5– ...
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... DAC. Analog Devices recommends that ANALOG well regulated power supplies with less than 1% ripple be incor- GROUND porated into the design of any system using the AD1851/AD1861. OPTIONAL MSB ADJUSTMENT Use of an optional adjustment circuit allows residual differential linearity error around midscale to be eliminated. This error is especially important when low amplitude signals are being re- produced ...
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... Figure 6 illustrates the specific timing requirements that must be met in order for the data transfer to be accomplished prop- erly. The input pins of the AD1851 are both TTL and 5 V CMOS compatible. The input requirements illustrated in Fig- ures 5 and 6 are compatible with data outputs provided by popular DSP filter chips used in digital audio playback systems ...
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... AD1851/AD1861 APPLICATIONS Figures 9 through 12 show connection diagrams for the AD1851 and AD1861 and the Yamaha YM3434 and the NPC SM5813AP/APT digital filter chips. CLK + 16/18 DLO YM3434 Figure 9. AD1851 with Yamaha YM3434 Digital Filter +5V CLK X1 ST 16/18 YM3434 Figure 10. AD1861 with Yamaha YM3434 Digital Filter ...
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... CLK X1 COB OW20 SM5813AP/APT OW18 +5V Figure 11. AD1851 with NPC SM5813AP/APT Digital Filter +5V CLK X1 COB OW20 SM5813AP/APT OW18 Figure 12. AD1861 with NPC SM5813AP/APT Digital Filter REV. A CLK LATCH AD1851 DATA DOL BCKO WCKO DATA DOR LATCH AD1851 CLK CLK LATCH AD1861 ...
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... AD1851/AD1861 16-BIT –V 16-BIT 1 S DAC LATCH DGND 2 SERIAL + INPUT REGISTER OUT CLK 5 CONTROL LOGIC LE 6 DATA 7 –V AD1856 CONNECT AD1856 16-BIT AUDIO DAC Complete, No External Components Required 0.0025% THD Low Cost 16-Pin DIP or SOIC Package Standard Pinout – VOLTAGE –V ...
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... PIN 1 0.104 (2.650) REV. A OUTLINE DIMENSIONS Dimensions shown in inches and (mm). N (Plastic DIP) Package R (SOIC Surface Mount) Package 16 9 0.419 (10.65 0.030 0.050 (1.27) (0.75) 0.413 (10.50) 0.019 0.012 0.013 (0.49) (0.30) (0.32) –11– AD1851/AD1861 0.042 (1.07) ...
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