R

01-SCH-R

SPECIFICATIONSElectrical Specifications
1. Absolute Maximum Ratings
Parameter
Supply Voltage
Input pin Voltage
Output pin Voltage

Symbol

Value

Unit

VCC
MIDI IN1,MIDI IN2,
SDI 1, SDI 2, SDI 3,xRESET, xUPDATE
MIDI OUT,
SDO 1, SDO 2, SDO 3,
MCK, BCK, LRCK

-0.3 ~ +3.6

V

Storage Temperature----0.3 ~ Vcc+0.3

V-0.3 ~ Vcc+0.3

V-20 ~ +60

(Humidity ~80% : non-dewcondensation)

℃

Value

Unit
V

2. Environmental Conditions
Parameter

SymbolOperating Voltage

VCC+3.3±5%

Operating Temperature

Ta(Humidity ~80% : non-dewcondensation)

0 ~ +50℃

3. DC Characteristics
Parameter

SymbolCondition

Power-supply voltage
MIDI IN 1,
Input HighMIDI IN 2,
Level Voltage
SDI 1, SDI 2,
SDI 3

VCC
VIH

-----Input Low
Level Voltage

Output HighLevel Voltage

Output Low
Level Voltage
Current
consumption

Revision 2

xRESETxUPDATEMIDI IN 1,
MIDI IN 2,
SDI 1, SDI 2,
SDI 3,xRESET,xUPDATEMIDI OUT
SDO 1,SDO 2,
SDO 3,
MCK,BCK,LRCKMIDI OUT
SDO 1,SDO 2,
SDO 3,
MCK,BCK,LRCKOperation
ResetVIL---(DGND=0V，Ta= 0 ～ 50℃)
Unit
Value
Min
TypMax
3.135
3.3
3.465
V
VCCx0.7
V
2.0--V

2.22.0--

VCC+0.3
VCC x 0.3

VVV--0.8

V-

0.9
0.8
-V
V
V

VOH

IOH=-4mA

-0.3
2.48

VOL

IOL=4mA

--

0.44

V

Icc

-----

300
50mA

June 19th, 2019

R01-SCH-R

SPECIFICATIONS

4. PoweOn・PowerDown Sequence
Symboltunc

Parameter(DGND=0V，Ta= 0 ～ 50℃)
Value
Unit
Min.
Typ.
Max.

Unclear time of voltage--100ms※1 Please power on and power off within tunc.

Vcc
Vcc

GND

Min Voltage (3.135V)

tunctunc※2 The table shown above is recommended values, so they represent guidelines rather than strict
requirements. During the rise and fall period, pin or internal states becomes undefined. Design
the system so that these undefined states do not cause an overall malfunction.

5. AC Characteristics (Reset timing)
SymbolParameter(DGND=0V，Ta= 0 ～ 50℃)
Value
Unit
Min.
Typ.
Max.

tOSC

Setup time of inside PLL ※120--mstRESW

xRESET “Low” Pulse Width
xRESET “High” to Clock Output Time.
xRESET “High” to MIDI Access Enable Time.
※220--

3.0

mss--

5.0s

xUPDATE Set-Up TimexRESET “High” to MIDI Access Enable Time.
※310--ms--

5.0

s

tRES_CLKtRES_ACC
tUS
tRES_UPACC※1 Please release xRESET after tosc.
※2 tRES_CLK : Please do not send the MIDI.
※3 tRES_UPACC : Please do not send the MIDI.

Vcc
tOSC
xRESET

Revision 2June 19th, 2019

R

01-SCH-R

山路を登りながら山路を登りながら山路を登り

SPECIFICATIONS
tRESW

xRESET山路を
tRES_CLKBCKLRCKMIDI IN 1

tRES_ACC

MIDI IN 2

Vcc

tOSC

xRESETtUS
Don’t CarexUPDATEtRES_UPACC

MIDI IN１

6. AC Characteristics (MIDI IN1, MIDI IN2, MIDI OUT)
(DGND=0V，Ta= 0 ～ 50℃)
SymboltRXD

Parameter

Min.

Value
Typ.

Max.

Unit

Bit Rate of Serial Data Input

31.25k -1%

31.25k31.25k +1%

bit/s

Bit Rate of Serial Data Output

31.25k -1%

31.25k31.25k +1%

bit/s(MIDI IN1,MIDI IN2)tTXD
( MIDI OUT)

Signal System:・Format

Revision 2：UART (Universal Asynchronous Receiver Transmitter)・Start Bit：1bit (L)・Data Length：8bit

・Stop Bit

：1bit (H)・Parity Bit：non

June 19th, 2019

がらR

登りながら

01-SCH-R

SPECIFICATIONS

7. AC Characteristics (Digital Audio Signal Timing)(DGND=0V，Ta= 0 ～ 50℃)
Value
Unit
Min.
Typ.
Max.

Parameter

SymbolLRCKFs(Sampling Rate)

32

kHz

MCK

256Fs(System Clock)

8.192

MHz

BCK

64Fs(Bit Clock)tBLR

BCK Low to LRCK Edge

-5tSDSSDIN Set-Up Time

3tSDH
tSDD

SDIN Hold TimeBCK Low to SDOUT

2-5tR(BCK)
tF(BCK)

2.048

MHz5nsns

5nsns

BCK Rise Time

9ns

BCK Fall Time

8nstR(MCK)MCK Rise Time

9nstF(MCK)MCK Fall Time

8ns

Outline of digital audio signal timing (IIS Format 24bit 32KHz)LRCK (Fs)BCK (64Fs)
Sound Data
SDO 1/2/3
SDI 1/2/3

Lch DATA(24bit, MSB First)

Rch DATA(24bit, MSB First)

Digital audio signal timing
LRCK (Fs)tBLR
BCK (64Fs)

tSDS

tSDH

SDI 1/2/3
tSDD
SDO 1/2/3

Digital audio signal timing (MCK)MCK(256Fs)

Revision 2tR(ＭCK)

tF(ＭCK)

90%

90%

10%

10%

June 19th, 2019