ISP1109 Просмотр технического описания (PDF) - Philips Electronics
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ISP1109 Datasheet PDF : 59 Pages
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Philips Semiconductors
ISP1109
USB transceiver with carkit support
Table 2: Pin description…continued
Symbol [1] [2] Pin
Type [3] Reset
state
UART_TXD 25
I
-
UART_RXD 26
O
-
ISET
27
O [4]
-
ID_PU
28
AI
-
ID
29
AI
-
VBUS
30
AI
-
VREF
31
P
-
MIC
32
AO
-
GNDD
exposed P
-
die pad
Description
connect to TxD of the UART controller; when not in
use, connect to VCC(I/O) through a 10 kΩ resistor
input
connect to RxD of the UART controller; leave this
pin open when not in use
push-pull output
output indicating detection of the carkit, charger or
factory mode to enable high current mode of the
phone charger; leave this pin open when not in use
push-pull output
an external resistor is connected between the ID
and ID_PU pins
identification detector input of the USB mini
connector
VBUS line input supply voltage of the USB
connector [5]
supply voltage for audio circuits; 2.775 V ± 0.1 V
audio output signal for the microphone channel
digital ground
[1] Symbol names ending with underscore N—for example, NAME_N—indicate active LOW signals.
[2] Use a decoupling capacitor of 0.1 µF on all VCC(I/O), VREF and VCC pins.
[3] I = input; O = output; I/O = digital input/output; OD = open-drain output; AI/O = analog input/output;
P = power or ground.
[4] The ISET pin is powered by REG3V3. All other digital pins are powered by VCC(I/O).
[5] For the decoupling capacitor requirement, refer to Table 7-7 of Universal Serial Bus Specification Rev. 2.0.
9397 750 13355
Product data sheet
Rev. 01 — 14 July 2005
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
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