TEF6721HL NXP Semiconductors, TEF6721HL Datasheet - Page 14

• Manufacturer Part Number: TEF6721HL
• Description: Car Radio Tuner Front-end For Digital If
• Manufacturer: NXP Semiconductors

Philips Semiconductors
TEF6721HL_4
Product data sheet
8.2.6 Write mode: data byte 4
Table 15:
Table 16:
[1]
Table 17:
Table 18:
Table 19:
BND1
0
0
1
1
BND1
0
1
Bit
7
6 and 5
4
3
2
1
0
AGC1
0
0
1
1
KAGC
X = don’t care.
7
FM band selection bits
AM band selection bits
Format of data byte 4
Description of data byte 4 bits
Setting of wideband AGC for AM (m = 0.3)
BND0
0
1
0
1
BND0
X
X
Symbol
KAGC
AGC[1:0]
LODX
FMINJ
-
AGCSW
MIXGAIN
AGC1
6
Rev. 04 — 20 December 2005
Frequency band
FM standard
FM Japan
FM East Europe
FM weather
Frequency band
AM SW
AM LW/MW
Description
Keyed FM AGC. If KAGC = 0, then keyed FM AGC is off. If KAGC = 1,
then keyed FM AGC is on.
Wideband AGC. These 2 bits set the start value of wideband AGC. For
AM, see
Local or distance. If LODX = 0, then distance mode is on. If LODX = 1,
then local mode is on.
FM mixer image rejection. If FMINJ = 0, then low injection. If
FMINJ = 1, then high injection.
This bit is not used and should be set to logic 0.
AGC switch. If AGCSW = 0, then AM AGC in FM mode and FM AGC in
AM mode is off. If AGCSW = 1, then AM AGC PIN diode drive is active in
FM mode and FM AGC PIN diode drive is active in AM mode.
FM mixer gain. If MIXGAIN = 0, then the FM mixer gain is nominal. If
MIXGAIN = 1, then the FM mixer gain is +6 dB.
AGC0
0
1
0
1
AGC0
5
Table 19
[1]
LODX
4
and for FM, see
VCO divider
2
3
3
1
VCO divider
10
20
AM mixer input voltage (peak value) (mV)
275
375
500
625
FMINJ
Car radio tuner front-end for digital IF
3
Table
© Koninklijke Philips Electronics N.V. 2005. All rights reserved.
20.
2
-
TEF6721HL
Charge pump current
130 A + 3 mA
130 A + 3 mA
1 mA
300 A
Charge pump current
1 mA
1 mA
AGCSW
1
MIXGAIN
14 of 48
0