User's Manual

Table Of Contents
BlueMod+SR/AI
BlueMod+SR/AP
Hardware Reference
Release r04d01 www.stollmann.de Page 12 of 65
3 Application Interface
3.1 Power Supply
BlueMod+SR require a power supply with the following characteristics:
Typical: 3,3V
DC
, min.: 2,5V
DC
, max.: 3.6V
DC
, low noise ( 10mV
rms
), > 80mA peak
For optimal performance a stable supply is recommended. If a regulator is to be used, it should be
a fast linear regulator placed as close as possible to the VSUP pins (E-6, F-6). Functionality has
been verified with the following types: TOREX: XC6204x332xx or XC6401xx42xx.
If the regulator cannot be placed close to the BlueMod+SR, it is recommended to place an
additional low ESR capacitor with at least 10µF as close as possible to the VSUP pins (E-6, F-6 or
C-1).
BlueMod+SR
XC6204-3.3
C-1,E-6,F-6
VSUP
GND:
A-7,E-7,F-7,B-[5:8],
C-[5:8],D-8,E-8,F-8
10µ + 100n + 1n
VOUT
VSS
VIN
CE
5 1
3
2
+5VDC
Figure 2: BlueMod+SR Example Power Supply
3.2 Power-up / -down Slew-Rate
Parameter
Min
Max
Unit
VSUP rise time rate 0
µs/V
VSUP fall time rate 20
Table 1: Power up/down Slew Rate Requirements