Digital Playback Processor 1/7
Version 1.0 09/99
Syntek Semiconductor Co., Ltd.
STK86C1051
1. DESCRIPTION:
STK86C1051 is a ROM-embedded playback processor which is able to play up to 30-minute digital
audio or digital voice data. An 65C02 CPU is embedded with data decompression engine. Flexible
Proprietary data compression algorithm is implemented to full use of data memory and to optimize playback
quality.
2.FEATURES:
Operating
2.4 to 3.5 V for battery operated applications
32768 Hz resonator applied
Low Power Consumption
1 A at sleep mode
10 A at stand-by mode
1.5 mA at operation mode
GPIO
16-bit programmable I/O port
8 output pins
4 independent chip select pins to external data mem
ory
Memory
2 KB on-chip SRAM
8 MB on-chip mask ROM.
Audio Interface
On-chip 12-bit DAC for voice/audio data playback
Decompression Engine is built-in
Up to 30-minute voice data or up to 15-minute audio
data section dependent bit rate compression
Timers are provided
2 Channels 16-bit Interrupt Timers
Watch Dog Timer
Digital Playback Processor 2/7
Version 1.0 09/99
Syntek Semiconductor Co., Ltd.
STK86C1051
Algorithm (bps)
duration to playback
( 512K X 16 )
Level 1
5K
26min
Level 2
7.3K
18min
Level 3
9.6K
13min
Algorithm(bps)
duration to playback
( 512 K X 16 )
Level A1
11.9K
11min
Level A2
14.2K
9min
Level A3
16.5K
8min
Digital Playback Processor 3/7
Version 1.0 09/99
Syntek Semiconductor Co., Ltd.
STK86C1051
3.PIN DESCRIPTION
Pin name
I/O Count Active
Function description
#RES
I
1
L
Internal pull-up pin to reset whole chip
DAC
O
1
Output from DAC
CLK32I
I
1
Control signal from 32768 clock
CLK32O
O
1
Control signal to 32768 clock
CAP
I
1
Capacitor for PLL circuit
PA[15.....0]
I/O
16
Port A
PB[11.....0]
I/O
8
Port B
VDD1,2,3,4,5
2
Positive power
GND1,2,3,4,5
2
Ground
PLLVDD
1
PLLGND
1
DACVDD
1
DACGND
1
Digital Playback Processor 4/7
Version 1.0 09/99
Syntek Semiconductor Co., Ltd.
STK86C1051
4. BLOCK DIAGRAM :
PLL
12-bit
DAC
Timing
&
Power Controll
Watch
Dog
VOICE
ENGINE
2K
SRAM
Timer
8-bit
CPU
GPIO
512K X 16 Mask ROM
I/O
VOICE/AUDIO O/P
O/P
z
STK86C105
32768 Hz
Crystal
Digital Playback Processor 5/7
Version 1.0 09/99
Syntek Semiconductor Co., Ltd.
STK86C1051
5. ABSOLUTE MAXIMUM RATINGS
Operating temperature ........................................................................ 0 to 70
Storage temperature ...................................................................... -65 to 150
Supply voltage ............................................................................................... 7 V
Input voltage ........................................................................... -0.6 to Vdd+0.6 V
6. ELECTRICAL CHARACTERISTIC :
Parameter
Symbol @Pin
Condition
Max Typ. Min Unit
Supply Voltage
Vdd
3.5
3.0 2.6
V
Operating current
Idd
VDDs
Vdd=3V,Clock sys=8Mhz
mA
Standby current
Istdby VDDs
Vdd=3V,Clock sys=8Mhz
10
1
mA
Sleep mode current
Islp
VDDs
Vdd=3V
1
A
Input high voltage
Vih
Vdd=3.0V
V
Input low voltage
Vil
Vdd=3.0V
V
Input high leakage current
Iih
Vih=Vdd
A
Input low leakage current
Iil
Vil=0
A
Output high voltage
Voh
Ioh=-2mA
V
Output low voltage
Vol
Iol=4mA
V
Audio output
Io
DAC
Vdd=3V, Rl=100 OHM
mA
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