Datasheet

TEF6901A_3 © NXP B.V. 2008. All rights reserved.
Product data sheet Rev. 03 — 20 March 2008 78 of 107
NXP Semiconductors
TEF6901A
Integrated car radio
V
o
output voltage V
VTUNE
= 0.5 V;
DAA[6:0] = 000 0000
- - 0.5 V
V
VTUNE
= 4.25 V;
DAA[6:0] = 111 1111
8- - V
V
VTUNE
=4V
DAA[6:0] = 000 0000 - - 0.5 V
DAA[6:0] = 100 0000 3.8 4.23 4.65 V
V
VTUNE
=2V
DAA[6:0] = 101 0101 2.45 2.74 3.05 V
DAA[6:0] = 010 1010 1.3 1.46 1.6 V
AM channel
AM RF AGC detector A: pin AMMIX1IN; see
Figure 40
V
AMMIX1IN(p-p)
AM AGC start level
(peak-to-peak value)
AGC[1:0] = 00; m = 1 700 1000 1400 mV
AM RF AGC detector B: pin AMIF2IN; see
Figure 40
V
AMIF2IN(p-p)
IF voltage on pin
AMIF2IN for AGC start
(peak-to-peak value)
m = 1; f
mod
= 400 Hz - 0.23 - V
RF cascode AGC
∆AGC AGC control range - 10 - dB
V
VAMCAS
cascode base voltage AGC[1:0] = 00; maximum gain
at cascode AGC
-5 - V
R
VAMCAS
cascode base source
resistance
- 1.6 - kΩ
I
VAMCAS
cascode base current
drive capability
source current 100 - - µA
sink current - 0 - µA
V
VAMCASFB
cascode emitter
DC voltage
minimum gain at cascode
AGC
- 320 - mV
maximum gain at cascode
AGC
KAGC = 1 - 800 - mV
KAGC = 0 - 4.15 - V
I
VAMCASFB
cascode feedback
current
-- 2 µA
RF PIN diode AGC current generator output: pin IAMAGC
∆AGC AGC control range f
RF
= 999 kHz; dummy aerial
15 pF/60 pF
-50- dB
I
sink(max)
maximum AGC sink
current
V
IAMAGC
>1V 10 - - mA
I
source
AGC source current AGC not active - −2.5 - µA
I
sink(FM)
AGC sink current in
FM mode
AGCSW = 1 0.5 1 - mA
AGCSW = 0 - - 100 nA
Table 110. Dynamic characteristics of the tuner
…continued
V
CC
= 8.5 V; T
amb
=25 ° C; see Figure 43; all AC values are given in RMS; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit