Rainbow-electronics ATR0630P1 Bedienungsanleitung PDF herunterladen (Seite 9)

4978AS–GPS–12/07

ATR0630P1

3.2 Signal Description

VDD_USB

(3)

A10 Supply

VDD18 H9 Supply

VDD18 G11 Supply

VDD18 F12 Supply

VDD18 B9 Supply

VDD18 E5 Supply

VDDIO

(4)

B5 Supply

VDDIO H5 Supply

VDIG A5 Supply

X A2 Analog OUT

XT_IN A12 Analog IN

XT_OUT B12 Analog OUT

XTO A1 Analog Input

Table 3-2. Signal Description

Pin Number Pin Name Type Active Level Pin Description/Comment

RF Section

D1 RF ANALOG IN - Input from SAW filter

C1 NRF ANALOG IN - Inverted input from SAW filter

GPS XTAL Section

A1 XTO ANALOG IN - XTO input (23.104 MHz)/optional TCXO input

B3 NXTO ANALOG IN - Inverted XTO input (23.104 MHz)/optional TCXO input

A2 X ANALOG OUT - XTO interface (capacitor)

B2 NX ANALOG OUT - Inverted XTO interface (capacitor)

RTC Section

A12 XT_IN ANALOG IN - Oscillator input (32.768 kHz)

B12 XT_OUT ANALOG OUT - Oscillator output (32.768 kHz)

Automatic Gain Control, bandwidth setting

A4 AGCO ANALOG IO - Automatic gain control analog voltage, connect shunt capacitor to GND

D4 EGC DIGITAL IN -

Enable external gain control

(high = software gain control, low = automatic gain control)

G12 AGCOUT0 DIGITAL OUT - Software gain control

C4 SDI DIGITAL IN - Software gain control

Table 3-1. ATR0630P1 Pinout (Continued)

Pin Name BGA 96 Pin Type

Pull Resistor

(Reset Value)

(1)

Firmware Label

PIO Bank A

Notes: 1. PD = internal pull-down resistor, PU = internal pull-up resistor, OH = switched to Output High at reset

2. VBAT18 represent the internal power supply of the backup power domain.

3. VDD_USB is the supply voltage for following the USB pins: USB_DM and USB_DP. For operation of the USB interface, sup-

ply of 3.0V to 3.6V is required.

4. VDDIO is the supply voltage for the following GPIO pins: P1, P2, P8, P12, P14, P16, P17, P18, P19, P20, P21, P23, P24,

P25, P26, P27 and P29.

1 2 3 4 5 6 7 8 9 10 11 12 13 14

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