QN8006B/8006LB
Table 6: Transmitter Characteristics
(Vcc = 2.7 ~ 5.0 V, T
A
= -25 ~ 85
o
C, unless otherwise noticed. Typical values are at Vcc = 3.3V, f carrier=88 MHz and T
A
= 25
o
C).
SYMBOL
R
audio_in
C
audio_in
G
audio_In
ΔG
audio_In
τ
emph
PARAMETERS
Audio input impedance
Audio input capacitance
1
Audio input gain
Audio gain step
Pre-emphasis time
constant
1
3
CONDITIONS
At pin ALI and ARI
At pin ALI and ARI
RIN[1:0] = 01
For any gain setting
PETC = 1
PETC = 0
MONO,
Δf
= 22.5 kHz
MIN
10
TYP
MAX
80
UNIT
kΩ
2
-1.5
0.5
71.3
47.5
5
15
71
44
51
8
1
1.5
78.7
52.5
0.1
1
15
30
121
2.5
2
-45
-45
-45
108
200
2
2
Page 9
75
50
65
QQ
：
SNR
audio_tx
Tx audio SNR
THD
audio_tx
α
LR_tx
B
LR_tx
M
pilot
SUP
sub
C
tune
P
out
ΔG
RF_Out
ΔP
out
P
mask
Tx audio THD
3
L/R separation
2, 3
L/R channel imbalance
1, 2
STEREO,
Δf
= 67.5 kHz,
Δf
pilot
= 6.75 kHz
41
58
5，
STEREO,
Δf
= 67.5 kHz,
Δf
pilot
= 6.75 kHz
66
%
dB
dB
%
dB
pF
dBμVp
dB
dB
dBc
0.03
45
40
有
Power gain step
科
技
RF output voltage swing
4
限
Output capacitance tuning
range
公
38 kHz sub-carrier
2, 3
suppression
司
，
2, 3, 6
19 kHz pilot modulation
Relative to 75 kHz deviation
18
66
L and R channel gain
imbalance at 1 kHz offset
from DC
43
7
70
5
82
0.7
-2
9.0
RF Channel frequency =
88 MHz
Over process, temperature
Over 76 MHz ~ 108 MHz
120 kHz to 240 kHz offset
240 kHz to 600 kHz offset
>600 kHz offset
1.5
Power gain flatness
合
讯
圳
F
rf
市
RF output spectrum
mask
5
-50
-55
76
50
-2
-2
75
100
金
RF channel frequency
Channel frequency step
Channel center frequency
accuracy
Pilot Tone frequency
accuracy
1
Modulation peak
frequency deviation
深
F
ch
F
err
F
perr
F
pk
Rev 2.08 (04/10)
Confidential
A
Copyright ©2010 by Quintic Corporation
Confidential Information contained herein is covered under Non-Disclosure Agreement (NDA).
19
pF
dB
dB
μs
dB
MHz
kHz
kHz
Hz
kHz
QUANTUM [ QUANTUM RESEARCH GROUP ]
