User Manual

6-Dec.-2008 Ver.0.5
TAIYO YUDEN Confidential
& Tentative
TAIYO YUDEN 37/39
EY
T
MECS
Control No.
HD-BA-A080137 (1/1)
Control name
Pin Layout
Pin Descriptions
Terminal
No.
Terminal name Input/Output Description Remark
1 GND - Ground
2 USB_D+ Input/Output USB data (Positive) input-output
3 USB_D- Input/Output USB data (Negative) input-output
4
PIO4/
(BT_PRIORITY/
CH_CLK)
Output
BT_Priority/CH_CLK output for Co-existence
signaling
Note 2
5 GND(DETECT) - DETECT
6 /RESET Input
Active low RESET signal with internal weak
pull-up
Note 3
7
PIO6/
(WLAN_ACTIVE/
CH_DATA)
Input
WLAN_Active/CH_Data input for Co-existence
signaling
Note 2
8 VDD_3.3V Input DC3.3V Power supply
Note 1
9
PIO1/USB_DETA
CH
Input
DETACH signal input
Low USB connect
High USB disconnect
Note 2
10 GND - Ground
Notes:
1. Pin8 (VDD_3.3V) is used for power supply of BT module. (MAX 200mA).
To fill the standard of “Supply voltage ripple and spike noise”, the capacitor, which has the
capacity of 2.2uF or more , should be put in the terminal VDD_3.3V outside as a bypass capacitor .
2. Strength pull-downs (pull-ups) are equivalent to a few kOhms resistance, but are more accurately
modeled as a 40uA current drain (source)
3. Weak pull-ups can be thought of 1M Ohm connections to VDD, but are more accurately
modeled as a -1uA current source.