ISP1506BBS,557 NXP Semiconductors, ISP1506BBS,557 Datasheet - Page 12
ISP1506BBS,557
Manufacturer Part Number
ISP1506BBS,557
Description
RF Transceiver USB2.0 ULPI DDR OTG
Manufacturer
NXP Semiconductors
Datasheet
1.ISP1506BBS557.pdf
(80 pages)
Specifications of ISP1506BBS,557
Operating Supply Voltage
1.65 V to 3.6 V
Mounting Style
SMD/SMT
Package / Case
HVQFN-24
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
935278349557 ISP1506BBS
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NXP Semiconductors
ISP1506A_ISP1506B_2
Product data sheet
7.9.3 RREF
7.9.4 DP and DM
7.9.5 ID
7.9.6 CPGND
7.9.7 C_A and C_B
Resistor reference analog I/O pin. A resistor, R
and GND, as shown in
biases internal analog circuitry. Less accurate resistors cannot be used and will render the
ISP1506 unusable.
DP (data plus) and DM (data minus) are USB differential data pins. These must be
connected to the D+ and D pins of the USB receptacle.
For OTG implementations, the ID (identification) pin is connected to the ID pin of the
micro-USB receptacle. As defined in
Specification Rev.
HIGH, the link must assume the role of a peripheral. If ID is detected as LOW, the link
must assume a host role. Roles can be swapped at a later time by using HNP.
If the ISP1506 is not used as an OTG PHY, but as a standard USB host or peripheral PHY,
the ID pin must be connected to REG3V3.
CPGND indicates the analog ground for the on-board charge pump. CPGND must always
be connected to ground, even when the charge pump is not used.
The C_A and C_B pins are to connect the flying capacitor of the charge pump. The output
current capability of the charge pump depends on the value of the capacitor used, as
shown in
For details, see
If the charge pump is not used, C_A and C_B must be left floating (not connected).
Fig 4.
•
STP
Table
Charge pump capacitor
3. For maximum efficiency, place capacitors as close as possible to pins.
Section
1.3”, the ID pin dictates the initial role of the link. If ID is detected as
Rev. 02 — 28 August 2008
Section
16.
ISP1506
16. This provides an accurate voltage reference that
Ref. 2 “On-The-Go Supplement to the USB 2.0
C_A
C_B
V
BUS
ISP1506A; ISP1506B
RREF
C cp(C_A)-(C_B)
, must be connected between RREF
004aaa601
I L
ULPI HS USB OTG transceiver
© NXP B.V. 2008. All rights reserved.
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