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: 64/80页
文件大小: 1590K
代理商: D1723GF
64
μ
PD1723GF-013,
μ
PD1723GF-213
(2) Auto up/down
(i)
,
,
,
keys
SEEK UP
SEEK DWN
SCAN UP
SEEK DWN
(ii) M2S switch =1
Key ON
SEEK stops here.
50 ms
40 ms
15 to
40
ms
40
ms
15 to
15 to
40
ms
250 to 375 ms
IF Check
No Station
IF Check
No Station
IF Check
No Station
5 sec.
Key ON
500 to 625 ms
40 ms
5 to
40
ms
40
ms
5 to
15 to
40
ms
250 to 375 ms
SD, IF Check
No Station
SD, IF Check
No Station
SD, IF Check
No Station
50 ms
(ii)
or
key held down for more than 0.5 seconds when AUTO500 switch = 1
MAN UP
MAN DWN
At both (i) and (ii), at the band edge time
becomes 520 to 695 ms.
IF check is performed twice, once in the FAST mode and once in the SLOW mode.
FAST mode IF check takes approx. 6 ms on the FM, MW, and LW bands and SLOW mode IF check
takes approx. 15 ms on the FM band and approx. 25 ms on the MW and LW bands.
(3) Preset memory call
(i)
M2S switch = 0
40 ms
Key ON
375 to 500 ms
50 ms
5 to
15 ms
40 ms
Key ON
375 to 500 ms
Within 2 sec.
5 to
15 ms
50 ms
Key OFF
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