®
TSH691
LOW COST 40MHz - 1GHz AMPLIFIER
.
.
.
.
28dB GAIN @ 3V @ 450MHz
+13.5dBm OUTPUT POWER (P1dB)
BIAS PIN FOR OUTPUT POWER & AMPLI-
FIER DISABLE
50Ω INPUT/OUTPUT MATCHING
D
SO8
(Plastic Micropackage)
DESCRIPTION
TSH691 is a low cost RF amplifier consisted of 2
stages, designed in advanced bipolar process, fea-
turing high performances. An external bias current
adjust allows to tune the output power and also to
set the amplifier in power-down mode. The TSH691
is intended to RF consumer equipments in ISM
band (remote controls, ASK transmitters) where
cost is sensitive
PIN CONNECTIONS
(top view)
ORDER CODES
Part Number
TSH691ID
Temperature Range
-35, +85 C
o
Package
D
•
RF out
1
8
Vbias
GND 2
GND
GND
3
4
7 V
CC
6
GND
5 RF in
June 1998
1/10
TSH691
SCHEMATIC DIAGRAM
ABSOLUTE MAXIMUM RATINGS
Symbol
V
CC1,
V
CC2,
V
bias
RF in
RF out
T
oper
T
stg
Parameter
Supply Voltages & Bias Voltage
RF Input Power
RF Output Power
Operating Free Air Temperature Range
Storage Temperature Range
Value
5.5
+10
+21
-35 to +85
-65 to +150
Unit
V
dBm
dBm
o
C
o
C
OPERATING CONDITIONS
Symbol
V
CC1,
V
CC2,
V
bias
V
bias
RF
sr
Parameter
Supply Voltages
Bias Voltage
RF Signal Range
Value
1.5 to 5
0 to 6
40 to 1000
Unit
V
V
MHz
ESD SENSITIVE DEVICE
Handling Precautions Required
2/10
TSH691
ELECTRICAL CHARACTERISTICS
T
amb
= 25
o
C, V
CC
& V
bias
= +2.7V, Z
L
= 50Ω
Parameter
Min.
Supply Current
S21 (V
in
= -20dBm, f = 450MHz)
S21 (V
in
= -20dBm, f = 900MHz)
Output Power 1dB Compression (f = 450MHz)
3rd Order Intercept Point (f = 430MHz)
S12 (Reverse Isolation @ f = 400MHz)
S11 (Input Return Loss @ f = 450MHz)
S11 (Input Return Loss @ f = 900MHz)
Noise Figure @ f = 450MHz
Noise Figure @ f = 900MHz
R
th(j-a)
Junction Ambient Thermal Resistance For SO8 Package
All parameters with min. or max. figures are 100% tested.
TSH691
Typ.
46
20
23
17
12
22
-46
-15
-10
4.5
5.4
140
180
30
Max.
Unit
mA
dB
dB
dBm
dBm
dB
dB
dB
dB
dB
o
C/W
SO8 PACKAGE THERMAL RESISTIVITY
Tamb (°C)
150
135
120
105
90
75
60
45
30
1
2
3
Vcc (V)
Rthmin
Rthmax
DEVICE
OVERSTRESSED
RIGHT BEHAVIOUR
4
5
6
DEFINITION
R
th(j-a)
Junction Ambient Thermal Resistance
o
Maximum Die Juntion Temperature
T
j
( C)
(~ 150
o
C)
T
amb
(
o
C) Ambient Temperature
P
d
(W)
Maximum Dissipated Power
(P
d
= 0.75 V
CC
•
I
CC
)
REMARKS
The right behaviour is obtained when the follow-
ing equation is fulfilled.
T
j
- T
amb
= P
d
•
R
th(j-a)
3/10
TSH691
TYPICAL SCATTERING PARAMETERS
(Reference waves planes at package leads)
TEST CONDITIONS
V
CC1
, V
CC2
, V
bias
= +2V, Pin = -40dBm, T
amb
= 25
o
C
Freq
MHz
40
50
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
950
1000
Mag
0.642
0.615
0.537
0.490
0.464
0.428
0.413
0.373
0.334
0.312
0.290
0.302
0.324
0.335
0.349
0.368
0.366
0.373
0.374
0.381
0.377
S11
Ang
-22.0
-25.7
-41.3
-55.6
-68.0
-79.0
-92.1
-101.5
-106.7
-111.5
-112.5
-114.5
-118.2
-122.9
-129.6
-135.0
-142.1
-147.9
-154.1
-159.0
-165.8
Mag
6.319
6.406
7.643
9.353
11.502
13.856
16.229
18.019
19.110
19.159
18.154
16.778
15.075
13.482
11.992
10.750
9.453
8.598
7.783
7.117
6.500
S21
Ang
5.0
7.1
7.7
3.1
-5.7
-18.0
-33.4
-51.2
-70.1
-90.3
-108.0
-124.8
-140.5
-153.6
-165.5
-177.2
173.4
165.0
155.8
146.7
138.9
Mag
0.003
0.008
0.002
0.004
0.007
0.003
0.005
0.008
0.008
0.008
0.008
0.010
0.015
0.011
0.011
0.019
0.011
0.015
0.013
0.017
0.013
S12
Ang
-126.5
170.7
70.1
-141.9
-117.3
162.3
142.1
101.4
115.2
169.9
111.5
92.1
93.6
109.6
101.7
82.4
79.5
60.2
89.7
111.3
82.2
Mag
0.715
0.631
0.369
0.253
0.202
0.203
0.209
0.263
0.326
0.382
0.395
0.425
0.424
0.427
0.425
0.414
0.413
0.432
0.438
0.447
0.462
S22
Ang
-54.7
-64.7
-91.3
-100.9
-100.9
-92.7
-87.6
-89.4
-99.7
-112.1
-122.9
-130.0
-139.6
-150.8
-159.0
-169.5
-177.8
176.2
166.4
160.8
155.1
4/10
TSH691
TEST CONDITIONS
V
CC1
, V
CC2
, V
bias
= +3V, Pin = -40dBm, T
amb
= 25
o
C
Freq
MHz
40
50
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
950
1000
S11
Mag
0.616
0.595
0.513
0.470
0.436
0.402
0.382
0.343
0.302
0.279
0.271
0.280
0.306
0.315
0.330
0.333
0.343
0.346
0.354
0.347
0.355
Ang
-23.3
-27.0
-43.4
-57.7
-71.1
-82.2
-95.0
-103.3
-109.7
-114.8
-114.0
-116.1
-119.8
-125.5
-131.1
-136.2
-142.5
-148.0
-155.1
-159.6
-166.2
Mag
9.237
9.402
11.263
13.566
16.434
19.416
22.265
24.337
25.564
25.594
24.292
22.527
20.511
18.282
16.311
14.604
12.860
11.668
10.579
9.652
8.775
S21
Ang
6.2
7.9
6.5
0.9
-8.6
-21.3
-36.6
-53.7
-71.8
-91.2
-108.3
-124.7
-140.1
-153.2
-165.1
-177.1
173.6
165.1
156.0
147.0
139.2
Mag
0.002
0.005
0.006
0.006
0.007
0.007
0.005
0.008
0.010
0.008
0.011
0.013
0.005
0.006
0.007
0.012
0.017
0.014
0.018
0.013
0.018
S12
Ang
-135.8
-169.5
-153.8
94.5
155.8
154.1
7.2
40.6
125.9
167.1
120.2
101.0
89.9
107.2
78.9
84.5
76.0
90.8
75.6
66.6
75.3
Mag
0.733
0.651
0.381
0.227
0.156
0.134
0.135
0.193
0.269
0.316
0.356
0.396
0.404
0.400
0.406
0.398
0.399
0.411
0.413
0.439
0.459
S22
Ang
-56.9
-67.7
-101.7
-119.1
-117.5
-100.3
-75.7
-78.0
-86.1
-100.6
-111.0
-119.3
-131.3
-142.6
-151.6
-160.4
-170.5
-178.8
170.9
165.2
157.3
TEST CONDITIONS
V
CC1
, V
CC2
, V
bias
= +4V, Pin = -40dBm, T
amb
= 25
o
C
Freq
MHz
40
50
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
950
1000
S11
Mag
0.614
0.590
0.508
0.465
0.429
0.396
0.371
0.335
0.295
0.275
0.265
0.282
0.296
0.314
0.321
0.334
0.339
0.348
0.340
0.352
0.341
Ang
-23.1
-27.4
-44.6
-59.9
-72.0
-83.4
-94.7
-103.8
-109.9
-114.8
-114.8
-117.0
-120.3
-124.7
-131.5
-135.8
-143.8
-149.4
-157.5
-161.0
-166.8
Mag
11.023
11.248
13.262
15.736
18.727
21.837
24.804
26.854
28.077
28.113
26.710
24.831
22.620
20.235
18.081
16.178
14.235
12.941
11.693
10.670
9.683
S21
Ang
6.9
7.9
4.5
-2.0
-11.5
-24.2
-39.3
-56.0
-73.6
-92.5
-109.4
-125.5
-140.8
-154.1
-166.2
-178.0
172.5
164.1
154.9
145.7
137.6
Mag
0.002
0.003
0.004
0.006
0.003
0.002
0.009
0.006
0.003
0.010
0.007
0.007
0.007
0.005
0.010
0.012
0.010
0.014
0.014
0.006
0.016
S12
Ang
107.6
-111.3
-47.0
-62.5
97.7
-135.5
154.7
135.2
139.7
97.0
111.8
93.8
110.0
85.1
93.2
106.1
74.1
57.9
80.2
87.4
50.0
Mag
0.726
0.646
0.366
0.206
0.130
0.108
0.136
0.191
0.262
0.321
0.335
0.389
0.393
0.402
0.388
0.390
0.377
0.392
0.402
0.409
0.433
S22
Ang
-54.4
-65.1
-97.6
-110.4
-104.3
-78.6
-56.7
-64.3
-75.2
-85.8
-98.2
-108.5
-121.0
-131.7
-143.9
-153.8
-162.4
-170.4
179.5
171.4
163.3
5/10
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