參數(shù)資料
型號(hào)： UPD9611GT
廠商： NEC Corp.
元件分類： Codec
英文描述： FOUR-CHANNEL PCM CODEC
中文描述： 四通道的PCM編解碼器
文件頁數(shù)： 22/28頁
文件大?。?/td> 161K
代理商： UPD9611GT
μ
PD9611
22
TRANSMISSION CHARACTERISTICS (T
A
= –20 to +85
°
C, V
DD
= 5
±
0.25 V, GND = 0 V, f
DCLK
= 2048 kHz)
Item
Symbol
Condition
Setting Value
Unit
Zero transmission level point (transmit)
OTLP
X
Referenced to 600
–3.8
dBm
Zero transmission level point (receive)
OTLP
X
Referenced to 600
–3.8
dBm
Item
Symbol
Condition
MIN.
TYP.
MAX.
Unit
Insertion loss
IL
A/D input signal
0 dBm0 1 kHz
–0.3
+0.3
dB
D/A input signal
0 dBm0 1 kHz
–0.3
+0.3
Transmission loss frequency
characteristics
F
RX
A/D
Reference input signal
1015 Hz 0 dBm0
60 Hz
24.0
–
dB
200 Hz
0
2.0
300 to 3000 Hz
–0.15
+0.15
3200 Hz
–0.15
+0.65
3400 Hz
0
0.8
3780 Hz
+6.5
F
RR
D/A
Reference input signal
1015 Hz 0 dBm0
0 to 3000 Hz
–0.15
+0.15
3200 Hz
–0.15
+0.65
3400 Hz
0
+0.8
3780 Hz
+6.5
Gain tracking (tone method)
GT
X
A/D
Reference input signal
+3 to –40 dBm0
–0.2
+0.2
dB
–50 dBm0
–0.5
+0.5
–10 dBm0
f = 700 to 1100 Hz
–55 dBm0
–1.0
+1.0
GT
R
D/A
Reference input signal
+3 to –40 dBm0
–0.2
+0.2
–50 dBm0
–0.5
+0.5
–10 dBm0
f = 700 to 1100 Hz
–55 dBm0
–1.0
+1.0
Transmit/receive channel
overall power distortion ratio
(tone method)
SD
X
A/D
+3 to –30 dBm0
36
dB
Input signal
–40 dBm0
30
f = 700 to 1100 Hz
–45 dBm0
25
SD
R
D/A
+3 to –30 dBm0
36
Input signal
–40 dBm0
30
f = 700 to 1100 Hz
–45 dBm0
25
Absolute delay characteristic
D
A
A/A
Input signal = 0 dBm0
540
μ
s
Absolute delay distortion
frequency characteristics
D
O
A/A
500 Hz
1400
μ
s
600 Hz
700
1000 to 2600 Hz
200
2800 Hz
1400
Idle channel noise
ICN
ADA
A/D A-law Psophometric weighted
–72
dBm0p
ICN
DAA
D/A A-law Psophometric weighted
–80
ICN
AD
μ
A/D
μ
-law C-message weighted
18
dBrnc0
ICN
DA
μ
D/A
μ
-law C-message weighted
10
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