參數(shù)資料
型號(hào)： MC33410FTA
廠商： MOTOROLA INC
元件分類： 無(wú)繩電話/電話
英文描述： DUAL CVSD/PLL CORDLESS PHONE SYSTEM
中文描述： TELECOM, CORDLESS, SUPPORT CIRCUIT, PQFP48
封裝： PLASTIC, LQFP-48
文件頁(yè)數(shù)： 16/20頁(yè)
文件大小： 300K
代理商： MC33410FTA
MC33410
16
MOTOROLA RF/IF DEVICE DATA
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19
0
Inverts Data Slicer output.
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Power Up
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5
20
0
Sets Data Modem mode.
5
22
N/A
The Status Output (same as Pin 13) is read out from this bit. A logic 1 indicates the
Data Detect register has detected a code word.
7
0
0
Bypass the Clock Recovery Block (Data slicer output goes directly to the descrambler).
7
3
0
Bypass the Data Detect block (Descrambler output goes directly to the CVSD Decoder).
7
11
1
Sets the code word size to be sent out via the Tx Data Register to 24 bits. If this bit is
0, the code word size is 16 bits.
7
12
1
Sets the data word size to be sent out via the Tx Data Register to 24 bits. If this bit is 0,
the data word size is 16 bits.
8
23 – 0
$000000
Code word for the Tx Data Register is entered into this register.
Data word for the Tx Data Register is entered into this register.
The data word received into the Rx Data Register is read out via the
μ
P port from this
register.
9
23 – 0
$000000
10
23 – 0
$000000
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7
1
0
Bypass the scrambler and descrambler.
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Register
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Bit No.
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Default
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Function
(when bit = 1 if appropriate)
7
10 – 8
010
Selects one of 8 programmable taps in the scrambler and descrambler. See Table 5.
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7
5 – 4
00
Determines the function for Pin 36 (MP1). See Table 6.
Multi Purpose Pin Control
Bit No.
Default
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Power Up
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17 – 12
100000
Sets the 6–bit counter for the Switched Capacitor Filter clock.
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Default
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Power Up
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6
0
0
Mutes the power amplifiers (Pins 27 to 29).
6
1
0
Mutes the receive speech processing path (Pin 30).
6
2
0
Mutes the transmit speech processing path (Pin 22).
6
10 – 6
01111
Provides 19 steps, 1.5 dB each (28.5 dB range), of gain adjust in the receive speech
audio path (Pins 32 to 30). See Table 8.
6
15 – 11
00100
Provides 4 steps of 4.0 dB each, of gain adjust in the transmit speech audio path
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20 – 17
0111
Adjusts the VB reference voltage (
≈
1.5 V) to improve low battery detection accuracy.
Total adjustment range is
≈±
9%.
Low Battery/Carrier Detection
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Power Up
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3
23 – 21
011
Selects the threshold for Low Battery Detection or Carrier Signal Detection. See
Table 10.
5
23
N/A
The output of the Low Battery/Carrier Detect Circuit is read from this bit.
6
5
0
Sets Carrier Detect Mode vs. Low Battery Mode
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