YMU759 Datasheet, PDF (4/18 Pages) List of Unclassifed Manufacturers – SYNTHESIS LSI FOR PORTABLE TELEPHONE

YMU759
Terminal functions
No.
Name
I/O
Function
1
CLKI
Ish Clock input (2~20MHz)
2
EXT1
O
External device control terminal 1 (*)
3
/IRQ
O
Interruption output
4
/RST
Ish Hardware reset input
5
IFSEL
I
CPU I/F selection L: Serial I/F, H: Parallel I/F
Connection of capacitor for built in PLL
6
PLLC
A
Connect the 3.3kΩ resistance and the 1000pF capacitor between this terminal
and VSS in series.
Digital power supply (Typically +3.0V)
7
VDD
-
Connect 0.1 µF and 4.7 µF capacitors between this terminal and VSS
8
VSS
-
Ground
Analog reference voltage.
9
VREF
A
Connect 0.1 µF capacitor between this terminal and VSS
10
HPOUT-L / MONO
A
Headphone L channel output: can be switched to mono through register setting
11
HPOUT-R
A
Headphone R channel output
12
EQ1
A
Equalizer terminal 1
13
EQ2
A
Equalizer terminal 2
14
EQ3
A
Equalizer terminal 3
Analog power supply (Typically +3.6 V)
15
SPVDD
-
Connect 0.1 µF and 4.7 µF capacitors between this terminal and SPVSS
16
SPVSS
-
Analog ground for speaker amplifier
17
SPOUT1
A
Speaker terminal 1
18
SPOUT2
A
Speaker terminal 2
19
EXT2
O
External device control terminal 2 (*)
20
D7
I/O Parallel I/F data bus 7 (*)
21
D6
I/O Parallel I/F data bus 6 (*)
22
D5
I/O Parallel I/F data bus 5 (*)
23
D4
I/O Parallel I/F data bus 4 (To be open when IFSEL=L)
24
D3
I/O Parallel I/F data bus 3 (To be open when IFSEL=L)
25
D2
I/O Parallel I/F data bus 2 (To be open when IFSEL=L)
26
D1
I/O Parallel I/F data bus 1 (To be open when IFSEL=L)
27
D0
I/O
Parallel I/F data bus 0 (To be open when IFSEL=L)
28
/WR
Ish Parallel I/F write pulse (To be open when IFSEL=L)
IFSEL= L Serial I/F data input
29
SDIN (/CS)
Ish
IFSEL= H Parallel I/F chip select input
IFSEL= L Serial I/F data decision signal
30
SYNC (A0)
Ish
IFSEL= H Parallel I/F address signal
IFSEL= L Serial I/F bit clock input
31
SCLK (/RD)
Ish
IFSEL= H Parallel I/F read pulse
32
SDOUT
OD Serial I/F data output (Pull up resistance is necessary for the outside)
Comment: Ish= Schmitt input, OD= open drain terminal, A= Analog terminal
(*) The function changes by setup of the register.
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