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参数资料
| 型号： | LA4585M |
| 元件分类： | 音频／视频放大 |
| 英文描述： | 0.034 W, 2 CHANNEL, AUDIO AMPLIFIER, PQFP36 |
| 封装： | QFP-36 |
| 文件页数： | 2/5页 |
| 文件大小： | 153K |
| 代理商： | LA4585M |
No. 5661-2/5
LA4585M
Parameter
Symbol
Conditions
Ratings
Unit
min
typ
max
[PRE + LOW BOOST + PVSS + PWR]
Quiescent current
ICCO1
Rg = 2.2 k
, low boost off, PVSS off
12
15
21
mA
ICCO2
Rg = 2.2 k
, low boost on, PVSS on
12
15
21
A
Voltage gain (closed loop)
VGT
VO = –5 dBm
62
64
67
dB
[PRE AMP]
Voltage gain (open loop)
VG0
VO = –5 dBm
70
83
dB
Voltage gain (closed loop)
VG1
VO = –5 dBm
40
dB
Maximum output voltage
VO max1 THD = 1 %, VCC = 1.8 V
0.1
0.2
V
Total harmonic distortion
THD1
VO = 0.2 V, VG = 40 dB/NAB
0.05
0.5
%
Equivalent input noise voltage
VNI
Rg = 2.2 k
, BPF = 20 Hz to 20 kHz
1.3
2.0
V
Crosstalk
CT1
Rg = 2.2 k
, TUNE 1 kHz
60
80
dB
Ripple rejection ratio
SVRR
Rg = 2.2 k
, VCC = 1.8 V, Vr = –20 dBm,
40
50
dB
fr = 100 Hz
[POWER AMP]
Output voltage
PO
THD = 10 %
23
34
mW
Voltage gain
VG2
VO = –5 dBm
27
29
32
dB
Total harmonic distortion
THD2
PO = 1 mW
0.4
1.0
%
Interchannel crosstalk
CT2
VO = –5 dBm, RV = 0
30
40
dB
Output noise voltage
VNO1RV = 0 , BPF = 20 Hz to 20 kHz
25
40
V
Ripple rejection ratio
Rr2
RV = 0 , Vr = –20 dBm,
45
55
dB
fr = 100 Hz, VCC = 1.8 V
Input resistance
Ri
22
30
38
k
DC offset voltage
VODC OFF Between pin 6 and pins 4 and 8
–90
+90
mV
[LOW BOOST]
Voltage gain
VG3
Vi = –30 dBm, boost on/off
–2.3
–3.8
–5.3
dB
Boost*
BST1
ViBST = –30 dBm, f = 100 Hz, boost on
11.2
14.7
18.2
dB
BST2
ViBST = –30 dBm, f = 10 kHz, boost on
7.0
8.5
10
dB
Maximum output voltage
VO max2 THD = 1%, boost on
0.25
0.4
V
Total harmonic distortion
THD3
VO = 0.1 V, boost on
0.1
0.5
%
Interchannel crosstalk
CT3
VO = –20 dBm, Rg = 0, boost on
25
32
dB
Output noise voltage
VNO2
Rg = 0, BPF = 20 Hz to 20 kHz, boost on
2.0
5.0
V
Ripple rejection ratio
Rr3
Rg = 0, fR = 100 Hz, VR = –20 dBm,
45
53
dB
VCC = 1.8 V, boost on
[LOW BOOST + PVSS + POWER] The following items are measured at an RV of 10 k maximum.
Voltage gain
VG4
Vi = –40 dBm, f = 1 kHz, boost off/on
22
24
27
dB
LOW BOOST output voltage
VO1Vi = –43 dBm, f = 100 Hz, boost on
0.13
0.23
0.33
V
LOW BOOST output voltage
VO2Vi = –28 dBm, f = 100 Hz, boost on
0.25
0.40
0.55
V
LOW BOOST total harmonic distortion
THD4
Vi = –40 dBm, f = 100 Hz, boost on
0.5
1.2
%
Output noise voltage
VNO3
Rg = 0, CCIR-ARM, boost off, with the power
–88
–85
–82
dBm
input switch K18 set to B.
PVSS voltage
VO3Vi = –40 dBm, PVSS 2
–40
–37
–34
dBm
PVSS width
WPVSS
The input amplitude between the start point and
30
40
dB
the point where the output is +4 dB. PVSS on
PVSS harmonic distortion
THD5
Vi = –40 dBm, PVSS 2
0.5
1.2
%
PVSS start input level
VOPi
PVSS 2
–67
–63
–59
dBm
Operating Characteristics at Ta = 25°C, VCC = 3.0 V, fi = 1 kHz, 0.775 = 0 dBm, preamplifier RL = 10 k,
low boost, power amplifier RL = 10
Note: *The amount of boost for a 1-kHz input.
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