ISP1160BD/01 STEricsson, ISP1160BD/01 Datasheet - Page 67

• Manufacturer Part Number: ISP1160BD/01
• Manufacturer: STEricsson

Specifications of ISP1160BD/01

• Lead Free Status / RoHS Status: Supplier Unconfirmed

11. Power supply
12. Crystal oscillator
ISP1160-01_7
Product data sheet
Fig 29. Using a 5 V supply.
Fig 31. Oscillator circuit with external crystal.
ISP1160/01
ISP1160/01
V REG(3V3)
V HOLD1
V HOLD2
XTAL2
XTAL1
V CC
The ISP1160/01 can operate at either 5 V or 3.3 V.
When using 5 V as the ISP1160/01’s power supply input, only V
connected to the 5 V power supply. An application with a 5 V power supply input is shown
in
internal core. This internal 3.3 V can also be obtained from V
When using 3.3 V as the power supply input, the internal DC/DC regulator will be
bypassed. All four power supply pins (V
power supply input.
It is recommended that you connect all four power supply pins to the 3.3 V power supply,
as shown in
must connect at least V
For both 3.3 V and 5 V operation, all four power supply pins should be connected to a
decoupling capacitor.
The ISP1160/01 has a crystal oscillator designed for a 6 MHz parallel-resonant crystal
(fundamental). A typical circuit is shown in
signal of 6 MHz can be applied to input XTAL1, while leaving output XTAL2 open. See
Figure
Figure
32. The 6 MHz oscillator frequency is multiplied to 48 MHz by an internal PLL.
29. The ISP1160/01 has an internal DC/DC regulator to provide 3.3 V for its
6 MHz
18 pF
18 pF
GND
004aaa070
Figure
004aaa068
+5 V
30. If, however, you have board space (routing area) constraints, you
Rev. 07 — 29 September 2009
CC
and V
REG(3V3)
Fig 30. Using a 3.3 V supply.
Fig 32. Oscillator circuit using external oscillator.
CC
to the 3.3 V power supply.
, V
Figure
REG(3V3)
ISP1160/01
ISP1160/01
XTAL2
XTAL1
31. Alternatively, an external clock
V REG(3V3)
, V
V HOLD1
V HOLD2
HOLD1
V CC
Embedded USB host controller
n.c.
REG(3V3)
and V
CC
V CC
ISP1160/01
GND
(pin 56) can be
HOLD2
© ST-ERICSSON 2009. All rights reserved.
OSC
(pin 58).
004aaa069
Out
) can be used as
+3.3 V
004aaa071
6 MHz
67 of 87