QN8006B/8006LB
Table 6: Transmitter Characteristics
(Vcc = 2.7 ~ 5.0 V, TA = -25 ~ 85 oC, unless otherwise noticed. Typical values are at Vcc = 3.3V, f carrier=88 MHz and TA = 25oC).
SYMBOL
PARAMETERS
CONDITIONS
MIN
TYP
MAX
UNIT
Raudio_in
Caudio_in
Gaudio_In
ΔGaudio_In
Audio input impedance
Audio input capacitance1
Audio input gain
At pin ALI and ARI
At pin ALI and ARI
RIN[1:0] = 01
10
80
5
kΩ
pF
2
-1.5
0.5
15
dB
dB
Audio gain step
For any gain setting
PETC = 1
1
1.5
78.7
52.5
71.3
47.5
75
50
65
Pre-emphasis time
constant1
τemph
μs
PETC = 0
MONO, Δf = 22.5 kHz
SNRaudio_tx
Tx audio SNR3
dB
STEREO, Δf = 67.5 kHz,
Δfpilot = 6.75 kHz
66
STEREO, Δf = 67.5 kHz,
Δfpilot = 6.75 kHz
THDaudio_tx
Tx audio THD3
0.03
45
0.1
%
L/R separation 2, 3
40
dB
αLR_tx
L and R channel gain
BLR_tx
L/R channel imbalance 1, 2 imbalance at 1 kHz offset
from DC
1
dB
19 kHz pilot modulation
Mpilot
SUPsub
Ctune
Relative to 75 kHz deviation
7
70
5
9.0
15
%
dB
2, 3, 6
38 kHz sub-carrier 2, 3
suppression
Output capacitance tuning
range
30
pF
RF Channel frequency =
RF output voltage swing4
Pout
82
121
dBμVp
88 MHz
Power gain step
Over process, temperature
Over 76 MHz ~ 108 MHz
120 kHz to 240 kHz offset
240 kHz to 600 kHz offset
>600 kHz offset
0.7
-2
1.5
2.5
2
dB
dB
ΔGRF_Out
ΔPout
Power gain flatness
-50
-55
-45
-45
-45
108
200
RF output spectrum
mask5
Pmask
dBc
Frf
RF channel frequency
Channel frequency step
76
50
MHz
kHz
Fch
100
Channel center frequency
accuracy
Ferr
Fperr
Fpk
-2
-2
2
2
kHz
Hz
Pilot Tone frequency
accuracy1
Modulation peak
frequency deviation
75
kHz
Rev 2.08 (04/10)
Copyright ©2010 by Quintic Corporation
Page 9
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