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MSM7617 Evaluation Board
2-Channel Echo Canceller LSI
GENERAL DESCRIPTION
This evaluation board is used to evaluate the characteristics of the
MSM7617 (64-pin QFP), a 2-channel echo canceller LSI device.
Separate channels are provided for both analog and digital (PCM)
input/output interface, so this evaluation board will work with all I/O
modes of the MSM7617 and a wide variety of evaluation circuits.
BLOCK DIAGRAM
SYNC1OUT
2ch PCM CODEC
RIN1
AIN1
ROUT1
AOUT1
SIN1
AIN2
SOUT1
AOUT2
RPCMI1
RPCMO1
SPCMI1
SPCMO1
EXT.SYNC1
EXT.SCK
RST SW1
SYNC(8 K)
SCK(128 K)
SYNC, SCK
Generator
SYNC(8 K)
D-V
DD
D-GND
A-V
DD
A-GND
DOUT1
DIN1
DOUT2
DIN2
SYNC
SCK
A/m
JP1
RIN1
ROUT1
JP2
SIN1
SOUT1
JP9
JP19
SYNC1
SCK
JP12
RST1
JP20
SCKO
SYNCO
NLP1
HCL1
ADP1
HD1
ATT1
SG11
SG10
SA11
SA10
RGC11
RGC10
ch1
Mode SW
MSM7617 Evaluation Board
MSM7617
JP4
RIN2
ROUT2
JP3
SIN2
SOUT2
JP11
SYNC2
JP10
CLKIN
RST2
IOM1
NLP2
IOM0
HCL2
ECDM2
ADP2
ECDM1
HD2
ECDM0
ATT2
ECM
SG21
PWDWN
SG20
SA21
A/m
SA20
Common
RGC21
Mode SW
RGC20
ch2
Mode SW
SYNC2OUT
SCKOUT
2ch PCM CODEC
DOUT1
AIN1
RIN2
DIN1
AOUT1
ROUT2
DOUT2
AIN2
SIN2
DIN2
AOUT2
SOUT2
SYNC
SCK
A/m
RPCMI2
RPCMO2
SPCMI2
SPCMO2
EXT.SYNC2
Main CLOCK
Generator
RST SW1
1
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Related Manuals for Oki MSM7617
Summary of Contents for Oki MSM7617
- Page 1 MSM7617 (64-pin QFP), a 2-channel echo canceller LSI device. Separate channels are provided for both analog and digital (PCM) input/output interface, so this evaluation board will work with all I/O modes of the MSM7617 and a wide variety of evaluation circuits. BLOCK DIAGRAM SYNC2OUT...
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Page 2: Specifications
MSM7617 Evaluation Board ¡ Semiconductor SPECIFICATIONS CODEC used MSM7533VGS-VK Channels 2 channels (can be set by I/O mode as below) 2-channel parallel mode 2-channel serial mode 1-channel cross-connected mode (FTF mode) Analog input Maximum input level 3.4 Vp-p 600 W... -
Page 3: Pin Descriptions
Analog input pin for channel 1 RIN signal. The input analog signal is converted to a PCM signal by a PCM CODEC to be provided as the RIN1 signal to the MSM7617. To use the RIN1 pin, set JP1 (RIN1 SEL) to ANLG (refer to the description of JP1). This input can be amplified about 0 to +12 dB by VR1. - Page 4 The input analog signal is converted to a PCM signal by a PCM CODEC to be provided as the RIN2 signal to the MSM7617. To use the RIN1 pin, set JP4 (RIN2 SEL) to ANLG (refer to the description of JP4). This input can be amplified about 0 to +12 dB by VR3.
- Page 5 RPCMI2 Input pin for channel 2 RIN PCM signal. The signal is directly input to the MSM7617's RIN2. To use the RPCMI2 pin, set JP4 (RIN2 SEL) to PCM (refer to the description of JP4). This pin is used for the PCM interface.
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Page 6: Component Descriptions
Component Number Description Component Name MSM7617 Insert MSM7617 (64-pin QFP). QFP socket MSM7617 Not used (used only by Oki Electric for test). PGA socket U1, U4 MSM7533 Insert MSM7533VGS-VK. SOP socket RIN1 SEL Jumper pins for setting RIN1 (channel 1 RIN) input. - Page 7 This setting is valid only when JP19 (INT SYNC SEL) has been set to OSC mode. The SYNC generator is used only by Oki Electric for test, so it has not been mounted on the board. SYNC1 mode is not used.
- Page 8 SCK. SCK and SYNC must be synchronized, so SYNC1 and SYNC2 must also be input externally. JP13 CLKIN SEL Jumper pins for switching the oscillator circuit used as the MSM7617's CLKIN input. JP13 OSC mode: OSC1/X'tal The OSC1 (crystal oscillator) will be used for CLKIN.
- Page 9 OSC mode: The SYNC output by the SYNC and SCK generator will be used. The SYNC and SCK generator is used only by Oki Electric for test, so it has not been mounted on the board. OSC mode is not used.
- Page 10 The SCK output by the SYNC and SCK generator will be used. The SYNC and SCK generator is used only by Oki Electric for test, so it has not been mounted on the board. OSC mode is not used. Volume for RIN1 pin amp.
- Page 11 ¡ Semiconductor MSM7617 Evaluation Board Component Descriptions (6/8) Component Number Description Component Name ch1 MODE Switches for setting channel 1 control pins. ch2 MODE Switches for setting channel 2 control pins. ch1 MODE SW1 ch2 MODE SW1 OPEN OPEN OPEN...
- Page 12 MSM7617 Evaluation Board ¡ Semiconductor Component Descriptions (7/8) Component Number Description Component Name ch1 MODE Switches for setting channel 1 control pins. Switches for setting channel 2 control pins. ch2 MODE ch1 MODE SW2 ch2 MODE SW2 OPEN OPEN OPEN...
- Page 13 MSM7617 power-down switch. Power-down Reset after releasing power-down. OPEN Normal mode Operate in accordance with control mode settings. Switch to select MSM7533V A-law or m-law. Set to correspond to MSM7617 used. PCM CODEC uses m-law. OPEN PCM CODEC uses A-law.
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Page 14: Usage Method
MSM7617 Evaluation Board ¡ Semiconductor USAGE METHOD 1. Set the I/O mode of the MSM7617. COMMON MODE SW-1,2: 2-channel parallel I/O, serial I/O or 1-channel cross-connected mode. 2. Set jumper pins in accordance with the interface circuit. 1) SYNC, SCK setting: external synchronization or internal synchronization... - Page 15 ¡ Semiconductor MSM7617 Evaluation Board * Usage Example 1: 2-Channel PCM Interface With 2-Channel Parallel I/O Evaluation is performed after connected to the existing PCM interface. Settings : 2-channel parallel I/O, PCM interface, external synchronization. ADPCM Line Line Line Echo...
- Page 16 MSM7617 Evaluation Board ¡ Semiconductor 1. Set the evaluation board. Set the COMMON MODE SW’s I/O Mode (IOM1, IOM0) to 2-channel parallel I/O mode (IOM1,0 = 0,0). Set JP1, JP2, JP3, and JP4 to PCM mode. Set JP9, JP11, and JP12 to EXT mode.
- Page 17 ¡ Semiconductor MSM7617 Evaluation Board * Usage Example 2: 2-Channel PCM Interface With 2-Channel Serial I/O Evaluation is performed after connected to the existing multiplex PCM interface. Settings : 2-channel serial I/O, PCM interface, external synchronization. Multiplexed PCM Lines ADPCM Multiplexed...
- Page 18 MSM7617 Evaluation Board ¡ Semiconductor 1. Set the evaluation board. Set the COMMON MODE SW’s I/O Mode (IOM1, IOM0) to 2-channel serial I/O mode (IOM1,0 = 0,1). Set JP1, JP2, JP3, and JP4 to PCM mode. Set JP9 and JP12 to EXT mode.
- Page 19 ¡ Semiconductor MSM7617 Evaluation Board 1. Set the evaluation board. Set the COMMON MODE SW’s I/O Mode (IOM1, IOM0) to 1-channel cross-connected mode (IOM1,0 = 1,0). Set JP1, JP2, JP3, and JP4 to ANLG mode. Set JP9 and JP12 to INT mode.