BU8788KN Datasheet, PDF (2/3 Pages) Rohm – Melody Sound Source LSI for Cellular Phone

Recommended Operating Conditions (Ta=25˚C)
Parameter
Symbol Min. Typ. Max. Unit
Supply voltage range
VDD
2.7
3.0
3.6
V
Electrical characteristics (Unless otherwise noted; Ta=25˚C, Vcc=3.0V)
Parameter
Symbol Min. Typ. Max. Unit
Clock input frequency
FMCLK
12
—
20
MHz
ANOUT pin load resistance ZAN
50
—
—
kΩ
VREF pin rise time
TRVR
—
70
100
ms
PLL pin rise time
TRPLL
—
—
10
ms
ANOUT amplitude
Analog operating
current consumption
Digital operating
current consumption
Analog static current
Digital static current
VMAX
IDDA
IDDD
IstA
IstD
— _0.667VDD —
—
1
2
—
33
50
—
—
5
—
—
5
VP-P
mA
mA
µA
µA
Conditions
Scale precision is within 0.2%
After DC Coupling
After releasing RESET when CVREF=1µF
After releasing RESET or STANDBY mode
(When C=4.7nF between PLL-FILTER pin and GND)
Theoretical value of dynamic range
Playing mode
Playing mode
Standby mode
Standby mode
Block Diagram
DVdd AVdd
IFSEL
D[7:0]
SCLK(/RD)
SEL(/CS)
SI/O(A0)
SO(/WR)
Sequencer
RAM I/F
WAVEreg0
TONEon/off
MD[6:0]
SD[7:0]
R/Lvol,Mute
WAVEreg1
WAVEreg2
WAVEreg3
WAVEgen0
WAVEgen1
WAVEgen2
WAVEgen3
SRAM(DataFIFO)
for MIDI
WAVEreg31
WAVEgen31
MCLK
PLL-filter
Clock gen.
PLL
VOL[7:0]
TOTALMUTE
NRST
SRAM(DataFIFO) _{ADPCM Decoder}
for ADPCM
Test-mode[1:0] ^{Test gen.}
RVOL[6:0]
LVOL[6:0]
DVss
AVss
VREF
ANOUT(L/Mono)
ANOUT(R/-)
ANOUT(Mono)
INT ctrl
INT
LED ctrl
LED