TEF6721HL_4 © Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet Rev. 04 — 20 December 2005 31 of 48
Philips Semiconductors
TEF6721HL
Car radio tuner front-end for digital IF
I
sink(max)
maximum sink current FM mode; open-collector;
V
TFMAGC
=V
O(ref)
+ 0.15 V
450 500 560 µA
I
source(max)
maximum source current FM mode; V
TFMAGC
=V
O(ref)
--−30 µA
V
o(n)
buffer output noise voltage FM mode;
V
VDDA2-AGCBUF
= 1 V (voltage
across external pull-up
resistor);
B = 400 Hz to 20 kHz
-1015µV
FM RF mixer
Reference voltage: pin VREFFMMIX
V
ref
reference voltage FM mode 6.6 7.3 8 V
AM mode 2.7 3.1 3.4 V
Inputs: pins FMMIXIN1 and FMMIXIN2
R
i
input resistance MIXGAIN = 0 - 3.5 - kΩ
MIXGAIN = 1 - 1.8 - kΩ
C
i
input capacitance - 5 7 pF
V
BIAS
DC bias voltage FM mode 2.2 2.7 3.2 V
V
i(RF)(p)
RF input voltage
(peak value)
1 dB compression point of
FM mixer output
MIXGAIN = 0 70 100 - mV
MIXGAIN = 1 35 50 - mV
Outputs: pins FMMIXOUT1 and FMMIXOUT2
R
o
output resistance 100 - - kΩ
C
o
output capacitance 2 3.5 5 pF
V
o(max)(p-p)
maximum output voltage
(peak-to-peak value)
3- - V
I
bias
mixer bias current FM mode 4.8 6 7.2 mA
FM mixer
g
m(conv)
conversion
transconductance
MIXGAIN = 0 8.5 12.5 18
MIXGAIN = 1 17 25 36
g
m(conv)(T)
conversion
transconductance variation
with temperature
MIXGAIN = 0 - −1 × 10
−3
-K
−1
F noise figure MIXGAIN = 0 - 3.5 4.6 dB
MIXGAIN = 1 - 2.4 - dB
IP3 3rd-order input intercept
point
MIXGAIN = 0 113 117 - dBµV
MIXGAIN = 1 - 108 - dBµV
Table 29: Dynamic characteristics
…continued
V
FMMIXOUT1
=V
AMMIXOUT1
=V
FMMIXOUT2
=V
AMMIXOUT2
=V
DDA1
=V
DDA2
=V
DDA3
=V
DDA4
=V
DDA5
= 8.5 V; V
DDA6
=5V;
V
DDD
=5V; T
amb
=25
°
C; see Figure 9; all AC values are given in RMS; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
I
IF
V
RF
----------
mA
V
---------
mA
V
---------
∆g
m(conv)
g
m(conv)
∆T×
---------------------------------
