Rohm BU92002GU Irda sir, fir controller ic Datasheet

05W799A
IrDA SIR, FIR Controller IC
BU92002GU
Dimension (Unit : mm)
Description
BU92002GU is FIR(4Mbps) compatible IrDA
controller IC. Built-in 5kbyte FIFO enables
simple system design in correspondence with
interrupt by a frame unit. (DMA is not used.)
It is accessible as memory device of bus
connection and can acquire a large quantity
of data with a 16bit width data bus instantaneously.
5.0
5.0
8 7 6 5 4 321 A
B
C
D
E
F
G
H
0.23
0.75
1.2Max.
0.5
VBGA063T050
Features
1) Data transfer speed
FIR(4Mbps)
SIR(2.4 to 115.2kbps) compatible
2) Built-in FIFO buffer 5kbyte
3) Data bus 16bit width
Applications
Mobile phone, printer, DSC, DVD/HDD recorder, LCD-TV,
PDP-TV, projector, portable audio equipments, etc.
Absolute Maximum Ratings (Ta=25˚C)
Symbol
Limits
Power supply voltage
VDD
-0.3 ~ +2.5
V
Power dissipation
Storage temperature range
Tstg
570
-25 ~ +85
-40 ~ +100
mW
Operating temperature range
Pd
Topr
Parameter
Unit
˚C
˚C
2005
11
Recommended Operating Conditions (Ta=25˚C)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Power supply voltage
VDD
1.62
1.8
1.98
V
Interface power supply voltage
VIO
1.62
3.0
3.6
V
Electrical characteristics (Unless otherwise noted; Ta=25˚C, VDD=1.8V)
Parameter
Symbol
Min.
Typ.
Max.
Unit
Conditions
Current consumption 1
IDD1
–
0.1
3.0
mA
No output load, All inputs=0V
Current consumption 2
IDD2
–
5.0
10.0
mA
CLK=48MHz
–
–
V
Digital high level input voltage
VIH
Digital low level input voltage
VIL
–
–
Digital high level input current
IIH
–
–
10
mA
Input voltage=VIO
Digital low level input current
IIL
–
–
10
mA
Input voltage=GND
Digital high level output voltage
VOH
VIO-0.6
–
–
V
IOH=-1mA
Digital low level output voltage
VOL
–
–
0.6
V
IOL=1mA
V
Application Circuit
VDD
IrDA
PWDOWN
D0~15
16
A1~3
SIR(115kbps)
Register control
/status
Asynchronous
DEC
CS
INTR
RPM971etc.
FIR(4Mbps)
RD
WR
3/16 DEM
CPU
I/F
Receiver shift
register
(S/P)
16
CRC
DEC
4PPM DEC
Preamble/ Flag detection
IrRX
16
VCC
GND
RESET
16
PWDN
16
Transmitterreceiver
FIFO buffer
16
SIR(115kbps)
Transmitter
shift register
(P/S)
CRC
ENC
Asynchronous
ENC
3/16 MOD
FIR(4Mbps)
XIN / CLK48M
XOUT
Crystal I/F
Baud rate
generator
4PPM ENC
GND
Preamble/ Flag insertion
IrTX
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