sm5953a Nippon Precision Circuits Inc, (NPC), sm5953a Datasheet - Page 2

• Manufacturer Part Number: sm5953a
• Description: Surround Effects Processor Lsi
• Manufacturer: Nippon Precision Circuits Inc, (NPC)

BLOCK DIAGRAM
PIN DESCRIPTION
1. I = CMOS input, O = output, Is = Schmitt input, Isd = Schmitt input with pull-down
2. Outputs are pulled-down when PDN = LOW or RSTN = LOW
No.
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
YSRDATA
ZSRDATA
YMDATA
YMCLK
THRUN
YLRCK
ZLRCK
TMOD
YMLD
Name
YSCK
RSTN
ZSCK
VDD
PDN
CLK
VSS
YMDATA
THRUN
YMCLK
RSTN
YMLD
PDN
CLK
I/O
Isd
O
O
O
Is
Is
Is
Is
Is
Is
Is
Is
Is
–
–
I
2
2
2
1
Word clock input (fs)
Bit clock input (32fs to 64fs)
Data input
System clock input
2.5V supply
Microcontroller clock input
Microcontroller data input
Microcontroller latch enable input
Through-mode select
Power-down select
Test mode pin (tie LOW or leave open-circuit)
0V supply ground
Reset input
Data output
Bit clock output (48fs fixed)
Word clock output
Microcontroller
Sequencer
Interface
SM5953A
Function
ZLRCK ZSCK ZSRDATA
YLRCK YSCK YSRDATA
Processing Block
Output Interface
Input Interface
Processing
Delay RAM
Surround
SEIKO NPC CORPORATION —2
HIGH
Test
Through mode
Power-down
Normal
Reset
LOW