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Part: YAC523
Category:
Multimedia
-> Audio
-> Controllers
-> Electronic Volumes Control
Description: High-quality 7-channel Digital Volume
Company: Yamaha Corporation of America
Datasheet: Download YAC523 datasheet File size : 55 kB
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Datasheet text preview:
YAC523
EVR2
Electric Variable Resistance 2
Outline
YAC523 (EVR2) is a 7ch high grade digital volume LSI for high-end audio systems. Owing to its built-in high-quality sound operational amplifier, output with wide dynamic range and low distortion factor can be obtained. YAC523 is able to control each channel through a serial data interface in 255 steps at 0.5dB per step, and can allow configuration of a system with 8 channels or more by using a daisy chain connection. Owing to its zero-cross detection function, the device is able to suppress audible noise that may occur at a quick volume change.
Features
~ Built-in 7channel high sound quality operational amplifier. ~ Wide volume range. ´ 31.5dB 95.0dB, MUTE (0.5dB/step, 255 steps) ~ Maximum input signal amplitude 4.2Vrms (±6V power supply) ~ Low distortion (THD) 0.0004 typ. (Input=1Vrms@1kHz, Gain=0dB£ ~ Low residual noise 1.2Vrms typ. (Gain=MUTE, IHF-A) ~ Power supply voltage ±4.75V±6.6V ~ Silicon gate CMOS process. ~ 48-pin plastic LQFP (YAC523-VZ)
YAC523CATALOG CATALOG No.:LSI-4AC523A2 2003.5
YAC523
Terminal configration
YAC523-VZ
OUT1
OUT3
OUT4
OUT5
OUT2
OUT6
OUT7
NC
NC
36
35
34
33
32
31
30
29
28
27
26
NC
AVSS ZCEN1 ZCEN2 CSN SDATAI SCLK SDATAO TE2 TE1 DGND REF AVSS
37 38 39 40 41 42 43 44 45 46 47 48 1 2 3 4 5 6 7 8 9 10 11 12
25 24 23 22 21 20 19 18 17 16 15 14 13
REF1B
NC
REF1A REF2B REF2A REF3B REF3A REF4B REF4A REF5A REF5B REF6A REF6B REF7A
AVDD
AVDD
IN1
IN2
IN3
IN4
IN5
IN6
AVSS
IN7
AVSS
2
REF7B
YAC523
Terminal function
Function Minus power supply for analog (-6.0V Typ.) Plus power supply for analog (+6.0V Typ.) ch1 analog input When avoid the use of this terminal, connect to ground. ch2 analog input And please use the output impedance of the source of input ch3 analog input signal less than 2.2k. ch4 analog input ch5 analog input ch6 analog input ch7 analog input Plus power supply for analog (+6.0V Typ.) Minus power supply for analog (-6.0V Typ.) ch7 analog reference voltage input 7B Connect to ground directly. ch7 analog reference voltage input 7A Connect to ground through 33F. ch6analog reference voltage input 6B Connect to ground directly. ch6analog reference voltage input 6A Connect to ground through 33F. ch5analog reference voltage input 5B Connect to ground directly. ch5analog reference voltage input 5A Connect to ground through 33F. ch4analog reference voltage input 4A Connect to ground through 33F. ch4analog reference voltage input 4B Connect to ground directly. ch3analog reference voltage input 3A Connect to ground through 33F. ch3analog reference voltage input 3B Connect to ground directly. ch2analog reference voltage input 2A Connect to ground through 33F. ch2analog reference voltage input 2B Connect to ground directly. ch1analog reference voltage input 1A Connect to ground through 33F. ch1analog reference voltage input 1B Connect to ground directly. Non connection or connect to ground. Non connection or connect to ground. ch7 analog output ch6 analog output ch5 analog output ch4 analog output ch3 analog output ch2 analog output ch1 analog output Non connection or connect to ground. Non connection or connect to ground. Minus power supply for analog (-6.0V Typ.) Zero-cross control input 1. Select one from four types of zero-cross modes including non-zerocross mode. When changing zero-cross modes during operation, set the system so that it changes at 1 second or more after the rise of CSN signal. I Zero-cross control input 2. Select one from four types of zero-cross modes including non-zero39 ZCEN2 cross mode. When changing zero-cross modes during operation, set the system so that it changes at 1 second or more after the rise of CSN signal. I Chip select input 40 CSN I Serial data input 41 SDATAI I Serial clock input 42 SCLK 43 SDATAO OD Serialdataoutput Serial data are outputted from this terminal when CSN pin is "L" level. This terminal becomes high-impedance state when CSN pin is "H". Since it is an open drain output pin, pull it up through a resistor to the power supply voltage (to be AVDD or less) of a device to be connected. Do not allow output current of 1.5mA or over. I Test terminal Non connection or connect to DGND terminal. 44 TE2 I Test terminal Non connection or connect to DGND terminal. 45 TE1 - Digital ground 46 DGND O Reference voltage output for digital For attaining stabilization, connect this terminal to 47 REF AVSS terminal through a capacitance of 10µF or higher (CREF). And please do not use this terminal output for the drive purpose of an external circuit. - Minus power supply for analog (-6.0V Typ.) 48 AVSS Note A: analog terminal, OD: Open drain output terminal, "L" level means VIL, "H" level means VIH. 3 No. Name 1 AVSS 2 AVDD 3 IN1 4 IN2 5 IN3 6 IN4 7 IN5 8 IN6 9 IN7 10 AVDD 11 AVSS 12 REF7B 13 REF7A 14 REF6B 15 REF6A 16 REF5B 17 REF5A 18 REF4A 19 REF4B 20 REF3A 21 REF3B 22 REF2A 23 REF2B 24 REF1A 25 REF1B 26 NC 27 NC 28 OUT7 29 OUT6 30 OUT5 31 OUT4 32 OUT3 33 OUT2 34 OUT1 35 NC 36 NC 37 AVSS 38 ZCEN1 I/O - - AI AI AI AI AI AI AI - - AI AI AI AI AI AI AI AI AI AI AI AI AI AI - - AO AO AO AO AO AO AO - - - I
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