BU94605AKV Datasheet, PDF (13/84 Pages) Rohm – AAC/WMA/MP3 +SD Memory Card +CD-ROM+MP3 Record

BU94605AKV BU94607AKV BU94702AKV BU94705AKV
Datasheet
●Application Information
1. Clock and Reset
Clock
Clock name
I/O
XIN_PLL
I
XOUT_PLL
O
Function
X'tal (16.9344MHz) connection input terminal
X'tal (16.9344MHz) connection terminal
Function
Reset
Signal name
RESETX
I/O
Function
I System reset input terminal
Remarks
Please release the reset signal continue L input for more than 100 us after clock input from the oscillation I/O terminal
becomes stable. (See Figure 4)
Power
s u p p ly
XIN _PLL
RESETX
W aiting tim e for
oscillation stabilization
fc lk
tR STX
Figure 4. Reset Timing
Item
Clock frequency
Reset L interval
Symbol
f_CLK
t_RSTX
Table 1. Timing
Rating
min
typ
16.9302 16.9344
100
-
max
16.9386
-
Unit
MHz
us
Remarks
2. USB I/F
USB I/O interface
Signal name
I/O
USB_DP
I/O
USB_DM
I/O
REXTI
O
Function
USB D+ I/O terminal
USB D- I/O terminal
USB bias resistor connection terminal
Remarks
Connect a resistor of 12 kΩ±1%
to GND.
This interface communicates with the USB device using USB_DP and USB_DM differential signals.
REXTI terminal is used to connect to the bias resistor in the USB-PHY block.
Builds in the USB Full speed (12Mbps) HOST control function.
Supports the USB mass storage class.
Doesn’t support external HUB.
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ22111・15・001
13/80
TSZ02201-0V2V0E600090-1-2
2012.12.10 Rev.002