TEF6730A_1 © NXP B.V. 2007. All rights reserved.
Product data sheet Rev. 01 — 21 February 2007 44 of 58
NXP Semiconductors
TEF6730A
Front-end for digital-IF car radio
[1] Based on 15 pF/60 pF dummy aerial, voltages at dummy aerial input, f
mod
= 400 Hz, 2.5 kHz audio bandwidth, f
i(RF)
= 990 kHz, m = 0.3
and nominal maximum IF AGC gain, unless otherwise specified.
[2] Based on 75 Ω dummy aerial, voltages at dummy aerial input, f
mod
= 400 Hz, de-emphasis = 50 µs, f
i(RF)
= 97.1 MHz, ∆f = 22.5 kHz,
nominal mixer gain and nominal maximum IF AGC gain, unless otherwise specified.
V
sens
sensitivity voltage B
IF
= 170 kHz - 2 - µV
threshold extension enabled; weak signal
handling enabled (SAF7730 N231)
- 1.1 - µV
V
i(RF)
RF input voltage start level of wideband AGC
data byte AGC bits WBAGC[1:0] = 00 - 19 - mV
data byte AGC bits WBAGC[1:0] = 01 - 14 - mV
data byte AGC bits WBAGC[1:0] = 10 - 10 - mV
data byte AGC bits WBAGC[1:0] = 11 - 7 - mV
V
i(RF)M
peak RF input voltage start level of narrow-band AGC; m = 0
data byte AGC bits NBAGC[1:0] = 00 - 17 - mV
data byte AGC bits NBAGC[1:0] = 01 - 14 - mV
data byte AGC bits NBAGC[1:0] = 10 - 11 - mV
data byte AGC bits NBAGC[1:0] = 11 - 9 - mV
IP3 third-order intercept point ∆f = 400 kHz - 123 - dBµV
α
ripple
ripple rejection V
CC(ripple)
/V
audio
;f
ripple
= 100 Hz;
V
CC(ripple)
= 10 mV (RMS); V
i(RF)
= 500 µV
-64- dB
Table 38. Overall system parameters
…continued
V
CCA
= 8.5 V; T
amb
=25
°
C; see Figure 25; all AC values are given in RMS; unless otherwise specified.
Symbol Parameter Conditions Min Typ Max Unit
