SM5877AM Nippon Precision Circuits Inc, SM5877AM Datasheet
SM5877AM
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SM5877AM Summary of contents
Page 1
... The SM5877AM has digital deemphasis filter, atten- uator, and soft mute circuits built-in. Double-speed operation and low-voltage operation are also sup- ported. The SM5877AM operates from a 2.7 to 5.5 V supply, and is available in 24-pin SSOPs. FEATURES 2.7 to 5.5 V operating supply voltage range 4.5 to 5.5 V operating supply voltage range for double-speed mode 44 ...
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... CKO O 4 DVSS 5 BCKI DVDD 8 LRCI Ip 9 TSTN Ip SM5877AM LRCI BCKI DI Input interface L R Filter & attenuation operation block Noise shaper operation block R LO AVSS Description When MODE is HIGH: Soft mute ON/OFF control. Mute is active when HIGH. When MODE is LOW: Attenuator level direction control. The attenuator direction is down when HIGH ...
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... Normal-voltage Parameter Supply voltage range Supply voltage variation Operating temperature range SM5877AM Description Test output 1. Normally LOW. Left-channel analog supply pin Left-channel analog output Analog ground pin Right-channel analog output Right-channel analog supply pin Infinity-zero detection output Crystal oscillator supply pin Crystal oscillator or 16 ...
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... XTI HIGH-level input current XTI LOW-level input current 4 LOW-level input current 4 Input leakage current (double speed), XTI clock input frequency the total current. DDA 3. Pins MUTE, DEEM, BCKI, DI, LRCI, TSTN, DS, RSTN, MODE and ATCK. 4. Pins TO1 and MUTEO. SM5877AM = DDL DDR Symbol ...
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... Pins MUTE, DEEM, BCKI, DI, LRCI, TSTN, DS, RSTN, MODE and ATCK. 4. Pins TO1 and MUTEO. AC Electrical Characteristics Normal-voltage DDR a Low-voltage System clock (XTI) Crystal Oscillator Parameter Oscillator frequency SM5877AM = Condition I DDD I DDX 2 I DDA V Clock input IH1 V Clock input IL1 V INAC V IH2 ...
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... Serial input (BCKI, DI, LRCI) Parameter BCKI HIGH-level pulsewidth BCKI LOW-level pulsewidth BCKI pulse cycle DI setup time DI hold time Last BCKI rising edge to LRCI edge LRCI edge to first BCKI rising edge Serial input timing BCKI DI LRCI SM5877AM Symbol t CWH t CWL CWH CWL t ...
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... MUTE hold time MODE setup time MODE hold time Rise time Fall time Control input timing MUTE MODE ATCK t DEEM DS MUTE MODE ATCK Reset Input (RSTN) Parameter RSTN LOW-level pulsewidth after supply rising edge SM5877AM Symbol t ATWL t ATWH t MUS t MUH t MOS t MOH ...
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... Overall frequency characteristic (deemphasis OFF 0.0 1.0 Passband characteristic (deemphasis OFF) 0.0 0.2 0.4 0.6 0.8 0.000 SM5877AM Frequency band 44.1 kHz 0 to 20.0 kHz 24.1 to 328.7 kHz 7.4535fs 0.4535fs 20.0 kHz 2.0 3.0 4.0 Frequency (fs) 0.125 0.250 Frequency (fs) Attenuation (dB) ...
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... Built-in analog LPF compensation Overall frequency characteristic (deemphasis ON 0.0 1.0 Passband characteristic (deemphasis ON 0.000 SM5877AM Frequency band 44.1 kHz 0 to 0.4535fs 0 to 20.0 kHz 24.1 to 328.7 kHz 0.4535fs 20.0 kHz 2.0 3.0 4.0 Frequency (fs) 0.125 0.250 Frequency (fs) Attenuation (dB) min typ max 0.09 – ...
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... Total harmonic distortion THD LSI output level Evaluation board output level Dynamic range 1 Signal-to-noise ratio Channel separation Ch. Sep 1. Signal-to-noise is measured following a device reset, with DATA = 0 (DI = LOW). Under these conditions, the signal-to-noise ratio includes noise-shaper noise. SM5877AM = 16.9344 MHz, T OSC Condition N ...
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... DATA = 16 bits Measurement conditions 1 Parameter Total harmonic distortion Output level Dynamic range Signal-to-noise ratio Channel separation 1. Pins LO and RO should have an output load (min). SM5877AM Left channel Evaluation Left/Right board channel selector Right channel NF Corporation 3346A input impedance 3346A left/right-channel Symbol ...
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... Measurement circuit SM5877AM + + + + + + 13 AVSS AVDDL 11 15 AVDDR TO1 10 16 MUTEO TSTN 9 17 XVDD LRCI 8 18 XTI DVDD 7 19 XTO XVSS BCKI DVSS 4 22 RSTN CKO 3 23 MODE DEEM 2 24 ATCK MUTE 1 NIPPON PRECISION CIRCUITS—12 + ...
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... BCKI. The arithmetic operation and output timing are inde- pendent of the input timing. Accordingly, after a reset, SM5877AM Note that the input clock accuracy and signal-to- noise ratio greatly influence the AC analog character- istics. Accordingly, care should be taken to ensure that the clock is free from jitter ...
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... MUTE only. When MUTE goes HIGH, the up/down counter counts down. The total time to go from 0 to maxi- mum mute is 1024/fs. This corresponds to approxi- mately 23 44.1 kHz. SM5877AM The gain is set by the counter contents DATT as fol- lows. Gain = 20 ...
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... Normal Speed Sony CXD2500 PSSL SM5877AM Infinity-Zero (MUTEO) The SM5877AM outputs an infinity-zero detection output signal under the following circumstances. From immediately after a reset input on RSTN until the initialization cycle finishes and the first data cycle occurs. 1024/fs When an infinity-zero occurs in the input data. ...
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... Customers are requested to comply with applicable laws and regulations in effect now and hereinafter, including compliance with export controls on the distribution or dissemination of the products. Customers shall not export, directly or indirectly, any products without first obtaining required licenses and approvals from appropriate government agencies. NIPPON PRECISION CIRCUITS INC. SM5877AM 16.9344 MHz X1 44.1 kHz ...