UAA2062 Просмотр технического описания (PDF) - Philips Electronics
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UAA2062 Datasheet PDF : 40 Pages
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Philips Semiconductors
Analog cordless telephone IC
Product specification
UAA2062
LOW-BATTERY DETECTOR LEVEL SELECTION
When the LBD register is set HIGH, the low-battery detector is enabled and the low-battery detect output signal is routed
to the output pin CDBDO. The low-battery detector level selection functions only in a programmable mode. The power-up
default value is step 7 (111).
Table 9 Low-battery detector level selection
BIT 2
0
0
0
0
1
1
1
1
BIT 1
0
0
1
1
0
0
1
1
BIT 0
0
1
0
1
0
1
0
1
STEP
0
1
2
3
4
5
6
7
NOMINAL
LOW-BATTERY
DETECTOR
VOLTAGE (V)
3.6
3.5
3.4
3.3
3.2
3.1
3.0
2.9
VOLTAGE REFERENCE SELECTION
An internal 1.5 V band gap reference voltage provides the voltage reference for the low-battery detector circuit, the
Vref(PLL) voltage regulator, the VB reference and all internal analog references.
Table 10 Voltage reference selection
BIT 2
0
0
0
0
1
1
1
1
BIT 1
0
0
1
1
0
0
1
1
BIT 0
0
1
0
1
0
1
0
1
STEP
0
1
2
3
4
5
6
7
NOMINAL VOLTAGE
REFERENCE (%)
−7
−5
−3
−1
+1
+3
+5
+7
2000 Aug 10
17
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