參數(shù)資料
型號(hào): PCA5010H
廠商: NXP Semiconductors N.V.
英文描述: Pager baseband controller
中文描述: 傳呼機(jī)基帶控制器
文件頁(yè)數(shù): 70/112頁(yè)
文件大?。?/td> 627K
代理商: PCA5010H
1998 Nov 02
70
Philips Semiconductors
Product specification
Pager baseband controller
PCA5010
Fig.45 V
DD
as a function of load current.
V
BAT
= 1.2 V; L = 470
μ
H; SRL = 5
; C
o
= 4.7
μ
F; ESR = 0.5
.
handbook, full pagewidth
MGR141
2.20
2.15
2.10
VDD (IL) mean
4
0
8
12
16
20
IL (mA)
VDD
(V)
HF
ripple
6.22.7
V
DD
ADJUSTMENT
V
DD
can be shifted in four steps by adjusting the band gap
voltage. The band gap voltage is set with the two bits
VBG1 and VBG0 in DCCON1 according to Table 55.
Table 55
V
DD
adjustment
VBG1
VBG0
OUTPUT VOLTAGE
0
0
1
1
0
1
0
1
V
DD
V
DD
50 mV
V
DD
+ 50 mV
V
DD
+ 100 mV
6.22.8
B
ATTERY LOW MEASUREMENT
Battery low measurement is enabled by setting the SBLI
bit in DCCON0. 0.5 ms after setting SBLI to logic 1 the BLI
bit in DCCON0 contains the measurement result. When
BLI = 0 the battery voltage is below 1.1 V. When BLI = 1
V
BAT
is above 1.1 V. When SBLI = 1 V
BAT
is measured
continuously. Setting SBLI to logic 0 disables the V
BAT
comparator and BLI is set to logic 1. After a reset pulse at
RESETIN, SBLI is reset to logic 0.
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