参数资料
型号: TDA7421N
厂商: STMICROELECTRONICS
元件分类: 接收器
英文描述: AM/FM, AUDIO SINGLE CHIP RECEIVER, PQFP64
封装: TQFP-64
文件页数: 27/47页
文件大小: 374K
代理商: TDA7421N
TDA7421N
Data byte specification
fOSC/fREF = LSB + MSB + 1
Table 19.
PLL reference counter 2 (MSB)
MSB
LSB
Function
D7
D6
D5
D4
D3
D2
D1
D0
0
00
MSB = 0
0
00
01
MSB = 256
0
00
10
MSB = 512
all combinations allowed
1
11
00
MSB = 64768
1
11
01
MSB = 65024
1
11
10
MSB = 65280
1
11
MSB = 65536
RC15
RC14
RC13
RC12
RC11
RC10
RC9
RC8
Bit name
Subaddress = 04H
Table 20.
Lock detector and PLL mode control
MSB
LSB
Function
D7
D6
D5
D4
D3
D2
D1
D0
0
PLL standby mode
01
PLL AM
1
0
not used
1
PLL FM mode
0
PD phase difference threshold 10ns
0
1
PD phase difference threshold 20ns
1
0
PD phase difference threshold 30ns
1
PD phase difference threshold 40ns
0
Not used in application mode
0
1
Activation delay = 4 fref
1
0
Activation delay = 6 fref
1
Activation delay = 8 fref
0
No lock detector controlled charge pump
1
Lock detector controlled charge pump
LDENA
D3
D2
D1
D0
PM1
PM0
Bit name
: Subaddress = 05H
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