ATR0622-EK1 ATMEL [ATMEL Corporation], ATR0622-EK1 Datasheet - Page 23
![no-image](/images/no-image-200.jpg)
ATR0622-EK1
Manufacturer Part Number
ATR0622-EK1
Description
GPS Baseband GPS Baseband
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.ATR0622-EK1.pdf
(31 pages)
- Current page: 23 of 31
- Download datasheet (605Kb)
Figure 4-3.
4890H–GPS–08/08
USB-VSB 5V
External Wiring Example Using Internal LDOs, USB Supply Voltage and Backup Power Supply
LDO 3.3V
The USB Transceiver is disabled if VDD_USB < 2.0V. In this case the pins USB_DM and
USB_DP are connected to GND (internal pull-down resistors). The USB Transceiver is enabled
if VDD_USB within 3.0V and 3.6V.
External
1 µF
(X7R)
NSHDN
1.5V to 3.6V
1 µF
(X7R)
LDOBAT_IN
LDO_OUT
VDDUSB
LDO_EN
LDO_IN
VBAT18
VDD18
VDDIO
VBAT
ldoin
ldoen
ldoout
ldobat_in
vbat
vbat18
variable IO Domain
Backup Memory
USB SM and
1.8V to 3.3V
Transceiver
Core
RTC
ATR0621P internal
LDOBAT
LDO18
vdd
ATR0621P
23
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