TDA7512 datasheet(26/42 Pages) STMICROELECTRONICS

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TDA7512

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2.3.5

Addr 5 IF Counter Control 1

2.3.6

Addr 6 IF Counter Control 2

Table 13.

MSB

LSB

Function

tSample = 20.48ms (FM)128ms (AM )

tSample = 10.24ms (FM)64ms (AM )

tSample = 5.12ms (FM)32ms (AM )

tSample = 2.56ms (FM)16ms (AM )

tSample = 1.28ms (FM)8ms (AM )

tSample = 640µs (FM)4ms (AM )

tSample = 320µs (FM)2ms (AM)

tSample = 160

µs (FM)1ms (AM )

IF counter disable / stand by

IF counter enable

Not valid

IF counter FM mode

IF counter AM mode (450KHz)

IF counter AM mode (10.7MHz)

Disable mute & AGC on hold in FM mode

Enable mute & AGC on hold in FM mode

Disable local mode

Enable local mode (PIN diode current = 0.5mA) “ON”

Table 14.

MSB

LSB

Function

000

fCenter = 10.60625MHz (FM) / 10.689MHz ; 449KHz (AM)

000

fCenter = 10.61250MHz (FM) / 10.690MHz ; 450KHz (AM)

---

----

010

fCenter = 10.67500MHz (FM) / 10.700MHz ; 460KHz (AM)

011

fCenter = 10.68125MHz (FM) / 10.701MHz ; 461KHz (AM)

011

fCenter = 10.68750MHz (FM) / 10.702MHz ; 462KHz (AM)

011

fCenter = 10.69375MHz (FM) / 10.703MHz ; 463KHz (AM)

011

fCenter = 10.70000MHz (FM) / 10.704MHz ; 464KHz(AM)

---

----

111

fCenter = 10.80000MHz (FM) / 10.720MHz ;480KHz (AM)

Not valid

011

∆f = 6.25kHz (FM)1kHz (AM)

100

∆f = 12.5kHz (FM) 2kHz (AM)

101

∆f = 25kHz (FM) 4kHz (AM)

110

∆f = 50kHz (FM) 8kHz (AM)

111

∆f = 100kHz (FM)16kHz (AM)

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