ISP1504CBS,157 NXP Semiconductors, ISP1504CBS,157 Datasheet - Page 44
![RF Transceiver USB2.0 ULPI OTG](/photos/15/65/156561/hvqfn32_sml.jpg)
ISP1504CBS,157
Manufacturer Part Number
ISP1504CBS,157
Description
RF Transceiver USB2.0 ULPI OTG
Manufacturer
NXP Semiconductors
Datasheet
1.ISP1504ABS118.pdf
(83 pages)
Specifications of ISP1504CBS,157
Number Of Transceivers
1
Esd Protection
YeskV
Operating Supply Voltage (typ)
Not RequiredV
Operating Temperature Classification
Industrial
Operating Supply Voltage (max)
Not RequiredV
Operating Supply Voltage (min)
Not RequiredV
Pin Count
32
Mounting
Surface Mount
Operating Temperature (max)
85C
Operating Temperature (min)
-40C
Operating Supply Voltage
1.65 V to 3.6 V
Mounting Style
SMD/SMT
Package / Case
HVQFN-32
Lead Free Status / RoHS Status
Compliant
Other names
935278309157 ISP1504CBS
NXP Semiconductors
ISP1504A_ISP1504C_3
Product data sheet
Fig 21. Transmitting USB packets without the automatic SYNC and EOP generation
TXREADY
TXVALID
ENABLE
CLOCK
DP, DM
9.12 On-The-Go operations
STUFF
TXBIT
DATA
[7:0]
STP
NXT
DIR
PHY will not transmit any EOP. The ISP1504 will also detect if the PID byte is A5h,
indicating an SOF packet, and automatically send a long EOP when STP is asserted. To
transmit chirp and resume signaling, the link must set OPMODE to 10b.
On-The-Go (OTG) is a supplement to Universal Serial Bus Specification Rev. 2.0 that
allows a portable USB device to assume the role of a limited USB host by defining
improvements, such as a small connector and low power. Non-portable devices, such as
standard hosts and embedded hosts, can also benefit from OTG features.
The ISP1504 OTG PHY is designed to support all the tasks specified in the OTG
supplement. The ISP1504 provides the front-end analog support for Host Negotiation
Protocol (HNP) and Session Request Protocol (SRP) for dual-role devices. The
supporting components include:
The following subsections describe how to use the ISP1504 OTG components.
•
•
•
•
•
Built-in 5 V charge pump
Voltage comparators
– A_VBUS_VLD
– SESS_VLD (session valid, can be used for both A-session and B-session valid)
– SESS_END (session end)
Pull-up and pull-down resistors on DP and DM
ID detector indicates if micro-A or micro-B plug is inserted
Charge and discharge resistors on V
TXCMD
IDLE
00h
00h 00h 80h PID
SYNC
Rev. 03 — 7 April 2008
PID
D1
D2
BUS
D3
DATA PAYLOAD
ISP1504A; ISP1504C
...
... D
N
ULPI HS USB OTG transceiver
1
D
N
FEh
EOP
© NXP B.V. 2008. All rights reserved.
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