YAMAHA YMF752-S Datasheet

Preliminary

YMF752

AC’97 Rev2.1 Audio CODEC with SRC

OVERVIEW

YMF752 is an AC’97 Audio CODEC LSI, which is fully compliant with the industry standard “Audio CODEC ’97” component specification (Revision 2.1). YMF752 includes a SRC (Sampling Rate Converter) for supporting variable sampling rate and an AC-Link serial interface. Therefore, YMF752 is the best audio solution for both laptops and desktop PCs as well as AMR (Audio Modem Riser) and MDC (Mobile Daughter Card). YMF752 also supports low power cons umption w hile norm al operating and allow s for controllin g the pow er down mode.

FEATURES

• AC’97 Revision 2.1 Compliant

• Exceeds PC98 / PC99 Audio Performance Requirements

• Analog Inputs:

- 4 Stereo Inputs: LINE, CD, VIDEO, AUX

- 2 Monaural Inputs: Speakerphone and PC BEEP Inputs

- 2 Independent Microphone Inputs

• PC BEEP can directly output to Line Out

• Internal +20dB amplifier circuitry for microphone

• Analog Outputs: Stereo LINE Output, True LINE Level and M onaural Output

• Supports 3D Enhancement (Wide Stereo)

• Supports Variable Sampling Rate (48k/44.1k/22.05k/16k/11.025k/8kHz)

• Programmable Power Down Mode

• Supports EAPD (External Amplifier Power Down)

• Power Supplies: Analog 5.0V, Digital 3.3V

• 48-Pin SQFP Package (YMF752-S)

The following functions are supported by using the software driver from YAMAHA.

• XG Wave Table Synthesizer

• Downloadable Sound (DLS)

• Legacy Audio (Sound Blaster Pro compatibility and FM Synthesizer) on Pure DOS

GENERAL MIDI logo is a trademark of Association of Musical Electronics Industry (AMEI), and indicates GM system level 1 compliant.

XG logo is a trademark of YAMAHA Corporation.

The contents of thi s catalog are target specifications and are subject to ch ange

without prior notice. When using this device, please recheck the specifications.

YAMAHA

CORPORATION

CATALOG No.:LSI-4MF752A02

YMF752 CATALOG

Decembe 3, 1998

July 2, 1999

YMF752

PIN CONFIGURATION

TEST

EAPD

CODEC ID1#

CODEC ID0#

(N.C.)

AVss2

LNLVL_OUT_R

(N.C.)

LNLVL_OUT_L

AVdd2

MONO_OUT

DVdd1

XTL_IN

XTL_OUT

DVss1

SDATA_OUT

BIT_CLK

DVss2

SDATA_IN

DVdd2

SYNC

RESET#

PC_BEEP

10 11 12

LINE_IN_R

36 35 34 33 32 31 30 29 28 27 26 25

LINE_OUT_R LINE_OUT_L TEST ENABLE CAP4 CAP3 CAP2 CAP1 Vrefout Vref AVss1 AVdd1

1 2 3 4 5 6 7 8 9

MIC1

AUX_L

PHONE

AUX_R

VIDEO_L

CD_L

VIDEO_R

CD_R

CD_GND

MIC2

LINE_IN_L

48-Pin SQFP Top View

July 2, 1999

YMF752

PIN DESCRIPTION

No. Name I/O Function

1 DVdd1 -

2 XTL_IN I 24.576MHz Clock Input 3 XTL_OUT O 24.576MHz Clock Output 4 DVss1 - Digital ground. Connect this pin to DVss2. 5 SDATA_OUT I AC’97 Serial Input Stream 6 BIT_CLK I/O AC’97 Bit Clock 7 DVss2 - Digital ground. Connect this pin to DVss1. 8 SDATA_IN O AC’97 Serial Output Stream

9 DVdd2 -

10 SYNC I SYNC Input (Fixed at 48kHz) 11 RESET# I Hardware Reset 12 PC_BEEP AI PC Speaker Beep 13 PHONE AI Telephony Input 14 AUX_L AI AUX Input Left Channel 15 AUX_R AI AUX Input Right Channel 16 VIDEO_L AI Video Audio Input Left Channel 17 VIDEO_R AI Video Audio Input Right Channel 18 CD_L AI CD Audio Input Left Channel

19 CD_GND AI

20 CD_R AI CD Audio Input Right Channel 21 MIC1 AI Microphone Input 1 22 MIC2 AI Microphone Input 2 23 LINE_IN_L AI Line Input Left Channel 24 LINE_IN_R AI Line Input Right Channel

25 AVdd1 -

26 AVss1 - Analog ground. Connect this pin to AVss2.

27 Vref AO

28 Vrefout AO Analog Reference Voltage Output

Digital power supply (+3.3V) Connect to the digital ground with 0.1mF and 47mF capacitors. Connect this pin to DVdd2.

Digital power supply (+3.3V) Connect to the digital ground with 0.1mF and 47mF capacitors. Connect this pin to DVdd1.

CD Audio Analog Ground Connect this pin to CD Ground or Analog Ground.

Analog Power Supply (+5.0V) Connect to the analog ground with 0.1mF and 47mF capacitors. Connect this pin to AVdd2.

Analog Reference Voltage Connect to the analog ground with 0.1mF and 10mF capacitors.

July 2, 1999

YMF752

No. Name I/O Function

29 CAP1 A

30 CAP2 A

31 CAP3 A

32 CAP4 A

33 ENABLE I+

34 TEST I+ LSI Test Pin (Do not connect externally.) 35 LINE_OUT_L AO Line Output Left Channel 36 LINE_OUT_R AO Line Output Right Channel 37 MONO_OUT AO Monaural Output

38 AVdd2 -

39 LNLVL_OUT_L AO True LINE Level Output Left Channel 40 (N.C.) - Do not connect externally. 41 LNLVL_OUT_R AO True LINE Level Output Right Channel 42 AVss2 - Analog ground. Connect to Avss1. 43 (N.C.) - Do not connect externally. 44 (N.C.) - Do not connect externally. 45 CODEC ID0# I+ CODEC ID (Do not connect externally.) 46 CODEC ID1# I+ CODEC ID (Do not connect externally.) 47 EAPD O External Amplifier Power Down 48 TEST O LSI Test Pin (Do not connect externally.)

Note) AI: Analog Input Pin, AO: Analog Output Pin, I+: Input Pin with a Pull-up resistor

Capacitor Connection Pin Connect to the analog ground with a 560pF capacitor. Capacitor Connection Pin Connect to the analog ground with a 560pF capacitor. Capacitor Connection Pin Connect to the analog ground with a 1000pF capacitor. Capacitor Connection Pin Connect to the analog ground with 0.1mF and 10mF capacitors. Normally, do not connect externally. In case of “low” level, YMF752 do not operate.

Analog power supply (+5.0V) Connect to the digital ground with 0.1mF and 47mF capacitors. Connect this pin to Avdd1.

July 2, 1999

YMF752

BLOCK DIAGRAM

DVdd(2)

DVss(2)

Vref

Vrefout

CAP4

CAP3

CAP2

CAP1

AVss(2)

AVdd(2)

ENABLE

EAPD

RESET#

SYNC

BIT_CLK

SDATA_OUT

SDATA_IN

CODEC ID0#

CODEC ID1#

XTL_IN

XTL_OUT

Power down

AC’97

digital

I/F

Volume

Timing Generator

VREF

Control

A/D A/D

Record R

16step

Record L

16step

MUX

SRC

D/A

MUX

D/A

PC Beep

Left

16step

PHONE

32step

AUX

32step

VIDEO

32step

LINE

32step

MIC

32step

MUX

Control

PCM L

32step

PCM R

32step

Right

0dB/

+20dB

CD Right

CD Left

Master L

Master R

L 32step

R 32step

32step

LNLVL

MUX

BUF

Monaural

32step

MIC1

MUX

MIC2

LINE_IN_R LINE_IN_L CD_R CD_GND CD_L VIDEO_R VIDEO_L AUX_R AUX_L PHONE

PC_BEEP

LINE_OUT_L

LINE_OUT_R

LNLVL_OUT_L

LNLVL_OUT_R

MONO_OUT

July 2, 1999

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