LA4585M
Operating Characteristics at Ta = 25°C, V = 3.0 V, fi = 1 kHz, 0.775 = 0 dBm, preamplifier R = 10 kΩ,
CC
L
low boost, power amplifier R = 10 Ω
L
Ratings
typ
Parameter
Symbol
Conditions
Unit
min
12
12
62
max
21
[PRE + LOW BOOST + PVSS + PWR]
Quiescent current
I
CCO1
Rg = 2.2 kΩ, low boost off, PVSS off
Rg = 2.2 kΩ, low boost on, PVSS on
VO = –5 dBm
15
15
64
mA
µA
dB
ICCO2
21
67
Voltage gain (closed loop)
[PRE AMP]
VGT
Voltage gain (open loop)
Voltage gain (closed loop)
Maximum output voltage
Total harmonic distortion
Equivalent input noise voltage
Crosstalk
VG0
VG1
VO = –5 dBm
VO = –5 dBm
70
83
40
0.2
0.05
1.3
80
dB
dB
V
%
µV
dB
VO max1 THD = 1 %, VCC = 1.8 V
THD1
VNI
0.1
VO = 0.2 V, VG = 40 dB/NAB
Rg = 2.2 kΩ, BPF = 20 Hz to 20 kHz
Rg = 2.2 kΩ, TUNE 1 kHz
0.5
2.0
CT1
60
40
Rg = 2.2 kΩ, VCC = 1.8 V, Vr = –20 dBm,
fr = 100 Hz
Ripple rejection ratio
SVRR
50
dB
[POWER AMP]
Output voltage
Voltage gain
Total harmonic distortion
Interchannel crosstalk
Output noise voltage
PO
VG2
THD2
CT2
THD = 10 %
VO = –5 dBm
PO = 1 mW
VO = –5 dBm, RV = 0 Ω
RV = 0 Ω, BPF = 20 Hz to 20 kHz
23
27
34
29
0.4
40
mW
dB
%
dB
µV
32
1.0
30
45
VNO
1
25
40
RV = 0 Ω, Vr = –20 dBm,
fr = 100 Hz, VCC = 1.8 V
Ripple rejection ratio
Rr2
Ri
55
30
dB
Input resistance
DC offset voltage
[LOW BOOST]
Voltage gain
22
–90
38
+90
kΩ
mV
VODC OFF Between pin 6 and pins 4 and 8
VG3
BST1
BST2
Vi = –30 dBm, boost on/off
ViBST = –30 dBm, f = 100 Hz, boost on
ViBST = –30 dBm, f = 10 kHz, boost on
–2.3
11.2
7.0
–3.8
14.7
8.5
0.4
0.1
32
–5.3
18.2
10
dB
dB
dB
V
%
dB
µV
Boost*
Maximum output voltage
Total harmonic distortion
Interchannel crosstalk
Output noise voltage
VO max2 THD = 1%, boost on
THD3
CT3
0.25
VO = 0.1 V, boost on
VO = –20 dBm, Rg = 0, boost on
Rg = 0, BPF = 20 Hz to 20 kHz, boost on
0.5
5.0
25
45
VNO
2
2.0
Rg = 0, fR = 100 Hz, VR = –20 dBm,
VCC = 1.8 V, boost on
Ripple rejection ratio
Rr3
53
dB
[LOW BOOST + PVSS + POWER] The following items are measured at an RV of 10 kΩ maximum.
Voltage gain
VG4
VO1
VO2
Vi = –40 dBm, f = 1 kHz, boost off/on
Vi = –43 dBm, f = 100 Hz, boost on
Vi = –28 dBm, f = 100 Hz, boost on
Vi = –40 dBm, f = 100 Hz, boost on
22
0.13
0.25
24
0.23
0.40
0.5
27
0.33
0.55
1.2
dB
V
V
LOW BOOST output voltage
LOW BOOST output voltage
LOW BOOST total harmonic distortion
THD4
%
Rg = 0, CCIR-ARM, boost off, with the power
input switch K18 set to B.
Output noise voltage
PVSS voltage
VNO
3
–88
–40
30
–85
–37
40
–82
–34
dBm
dBm
dB
VO3
Vi = –40 dBm, PVSS 2
The input amplitude between the start point and
the point where the output is +4 dB. PVSS on
PVSS width
WPVSS
PVSS harmonic distortion
PVSS start input level
THD5
VOPi
Vi = –40 dBm, PVSS 2
PVSS 2
0.5
–63
1.2
–59
%
dBm
–67
Note: *The amount of boost for a 1-kHz input.
No. 5661-2/5