參數(shù)資料
型號: TDA8046
廠商: NXP Semiconductors N.V.
英文描述: ECONOLINE: RB & RA - Dual Output from a Single Input Rail- Power Sharing on Output- Industry Standard Pinout- 1kVDC & 2kVDC Isolation- Custom Solutions Available- UL94V-0 Package Material- Efficiency to 85%
中文描述: 多模QAM解調(diào)器
文件頁數(shù): 38/48頁
文件大小: 245K
代理商: TDA8046
1996 Nov 19
38
Philips Semiconductors
Product specification
Multi-mode QAM demodulator
TDA8046
13 CLOCK RECOVERY CHARACTERISTICS
14 AGC CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Clock recovery detector
C
LOCK RECOVERY
:
BIAS CURRENT FOR
DAC
S SET TO
37.5
μ
A
K
d
detector constant
SNR = 21 dB for
64-QAM constellation;
SNR = 27 dB for
256-QAM constellation
0.24I
CLK
μ
A/rad
f
CLK
f
n
I
CLK(max)
frequency range
natural frequency
maximum DAC output current
(programmable)
DAC sample rate
C
LOCK RECOVERY
DAC output currents
I
oCLKlock
mean output current
I
oCLKlock
matching of output currents
100
50
400
200
ppm
Hz
μ
A
f
DAC
r
s
MHz
2.5
I
CLK
+2.5
μ
A
%
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
AGC detector
AGC
DETECTOR
:
BIAS CURRENT FOR
DAC
S SET TO
37.5
μ
A
R
AGC
AGC range of detector
I
zero
zero current
I
AGC(max)
maximum DAC output current
(programmable)
f
DAC
DAC sample rate
AGC DAC output currents
±
20
100
50
+100
200
dB
nA
μ
A
r
s
MHz
I
oAGC
mean output current
in lock
unlock
5
1
14
I
AGC
I
AGC
+5
μ
A
μ
A
%
I
oAGC
matching of output current
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