ISP1705AETTM STEricsson, ISP1705AETTM Datasheet - Page 19

• Manufacturer Part Number: ISP1705AETTM
• Manufacturer: STEricsson

Specifications of ISP1705AETTM

• Lead Free Status / RoHS Status: Compliant

ISP1705_2
Product data sheet
8.12.10 V
8.12.9 REG3V3 and REG1V8
If an external V
of that circuit can be connected to the FAULT input pin. The USE_EXT_VBUS_IND bit in
the OTG_CTRL register (see
INTF_CTRL register (see
link of V
The FAULT input pin is mapped to the A_VBUS_VLD bit in RXCMD. Any changes to the
FAULT input will trigger RXCMD carrying the FAULT condition with A_VBUS_VLD.
For details, see
These are output voltage pins from the internal regulator. These supplies are used
internally to power digital and analog circuits.
For proper operation of the regulator, pins REG3V3 and REG1V8 must each be
connected to a 0.1 F capacitor in parallel with a 4.7 F low ESR capacitor.
REG3V3 powers on-chip pads of the following pins:
This I/O pin acts as an input to V
charge and discharge resistors. For details, see
The V
values for various applications.
Table 4.
Application
OTG
Standard host
Standard peripheral
•
•
•
•
•
•
•
BUS
CFG0
DM
DP
FAULT
ID
PSW_N
RREF
BUS
BUS
pin requires a capacitive load.
Recommended V
fault events by sending RXCMDs on the ULPI bus.
BUS
Section 10.3.2
overcurrent or fault detection circuit is used, the output fault indicator
Rev. 02 — 21 January 2009
Section
BUS
Section
and
capacitor value
BUS
11.6) must be set to logic 1. The ISP1705 will inform the
Section
comparators, and also as a power supply pin for SRP
11.7) and the IND_PASSTHRU bit in the
V
1 F to 6.5 F, 10 V
120 F
1 F to 10 F, 10 V
BUS
Table 4
capacitor (C
10.3.3.
20 %, 10 V
Figure
provides the recommended capacitor
VBUS
9.
ULPI Hi-Speed USB transceiver
)
© ST-NXP Wireless 2009. All rights reserved.
ISP1705
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