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参数资料
| 型号： | D1723GF |
| 厂商： | NEC Corp. |
| 英文描述： | PLL FREQUENCY SYNTHESIZER AND CONTROLLER FOR FM/MW/LF TUNER CAR AUDIO |
| 中文描述： | 锁相环频率合成器和控制器的调频/中波/低频调谐器汽车音响 |
| 文件页数： | 10/80页 |
| 文件大小： | 1590K |
| 代理商： | D1723GF |
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10
μ
PD1723GF-013,
μ
PD1723GF-213
PIN NAME
PIN No.
SYMBOL
AM (MW and LW bands) intermediate frequency (IF)
input pin.
The input amplitude is 0.1 V
P-P
. Since there is an on-
chip AC amplifier, block the DC component of the input
signal with a capacitor. This pin is valid when the
initialize diode matrix DISAMIF switch is 0.
This pin is used for detecting the presence of a broad-
cast station during MW and LW band autotuning. The
input frequency ranges and input conditions for deter-
mining the presence of a broadcast station are shown
below.
DESCRIPTION
OUTPUT
TYPE
MW
LW
MW
LW
MW
450
±
5
450
±
5
459
±
5
459
±
5
450
±
5
450
±
2
450
±
0.5
459
±
2
459
±
0.5
450
±
0.5
Area
Europe 1
Europe 2
Others
Item
Band
Input Frequency
Range
[kHz]
Input Frequency
Range
[kHz]
Input frequency range
is the frequency that must be
input within 20 ms after the PLL is locked.
Input frequency range
is the frequency that must be
input within 40 ms after
was input.
When both input frequency ranges
and
are sat-
isfied, a broadcast station is judged to be present and
autotuning stops.
FM band intermediate frequency (IF) input.
The input amplitude is 0.1 V
P-P
. Since there is an AC
amplifier on the chip, block the DC component of the
input signal with a capacitor. This pin is valid when the
initialize diode matrix switch ENFMIF is 1.
This pin is used for detecting the presence of a broad-
cast station during FM band autotuning. The input
frequency ranges and input conditions for determin-
ing the presence of a broadcast station are shown
below.
Area
10.7 MHz
±
50 kHz
Input Frequency
Range
Input Frequency
Range
10.7 MHz
±
12.5 kHz
All areas
Item
Input frequency range
is the frequency that must be
input within 20 ms after the PLL is locked.
Input frequency range
is the frequency that must be
input within 20 ms after
was input.
When both input frequency ranges
and
are sat-
isfied, a broadcast station is judged to be present and
autotuning stops.
FM inter-
mediate
frequency
input
17
FMIF
AM inter-
mediate
frequency
input
16
AMIF
Input
Input
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