ISP1508AET NXP Semiconductors, ISP1508AET Datasheet - Page 10

• Manufacturer Part Number: ISP1508AET
• Description: RF Transceiver USB 2.0 ULPI TRNSCVR
• Manufacturer: NXP Semiconductors

Specifications of ISP1508AET

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 935283548118 ISP1508AET-T

NXP Semiconductors
ISP1508A_ISP1508B_1
Product data sheet
7.10 REG3V3 and REG1V8
7.11 XTAL1 and XTAL2
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, 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:
XTAL1 is the crystal oscillator input, and XTAL2 is the crystal oscillator output. The
allowed crystal or clock frequency on the XTAL1 pin is selectable by the CFG1 and CFG2
pins, as shown in
Table 5.
CFG1
0
Fig 3. V
•
•
•
•
•
•
•
CFG0
DM
DP
FAULT
ID
PSW_N
RREF
BUS
Allowed crystal or clock frequency on the XTAL1 pin
pin internal pull-up and pull-down scheme
CFG2
0
Table
Rev. 01 — 14 August 2007
V
comparators
5.
BUS
Allowed crystal or clock frequency on the XTAL1 pin
19.2 MHz
R UP(VBUS)
R DN(VBUS)
DISCHRG_
VBUS
CHRG_VBUS
ISP1508A; ISP1508B
R I(idle)(VBUS)
ISP1508
004aaa909
ULPI HS USB transceiver
REG3V3
V
BUS
© NXP B.V. 2007. All rights reserved.
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