Circuit Description
This integrated circuit permits the design of TV-tuners covering the entire frequency
range from 48 … 900 MHz split into 3 frequency bands. The application is suitable for all
tuners in TV- and VCR-sets.
The integrated circuit includes 3 balanced mixers (double balanced mixer/ring mixer),
one unbalanced oscillator for VHF I and two balanced oscillators for VHF II and UHF, a
SAW-filter driver amplifier as well as a reference voltage source and a band switch.
Filters between tuner input and IC separate the TV-frequency signal into three bands.
The band switch ensures that only one band at a time is activated. In the activated band
the signal passes a frontend stage with MOSFET-amplifier, a double-tuned bandpass
filter and is then fed to the balanced mixer input of the IC which is a high-impedance
stage for the VHF I-range and a low-impedance stage for the VHF II- and UHF-range,
respectively. The input signal is mixed there with the oscillator signal from the activated
oscillator section and fed into common IF-stage for all bands. The IF-signal is further
amplified in a SAW-filter driver section in order to drive the SAW-filter with a low
impedance.
Type Ordering Code Package
TUA 2019-5X Q67000-A5150 P-DSO-24-1 (SMD)
TUA 2019-5X Q67006-A5150 P-DSO-24-1 Tape & Reel
VHF I / VHF II / UHF-Tuner IC
Preliminary Data Bipolar IC
TUA 2019-5X
P-DSO-24-1
Features
●Few external components
●Frequency and amplitude-stable unbalanced
oscillator for the VHF I-frequency range
●Frequency and amplitude-stable balanced oscillators
for the VHF II- and UHF-frequency range
●Optimum decoupling of input frequency from oscillator
●Double balanced mixer with wide dynamic range and
high-impedance inputs for the VHF I-frequency range
●Double balanced mixer with wide dynamic range and
low-impedance inputs for the VHF II- and
UHF-frequency range
●Low-impedance SAW-filter driver output
●SAW-filter driver with high signal-handling capability
●Internal band switch
●Low-noise, internal reference voltage
●Integrated 1st IF-bandpass filter
Semiconductor Group 1 02.95
Semiconductor Group 2
TUA 2019-5X
Pin Configuration
(top view)
P-DSO-24-1
TUA 2019-5X
Semiconductor Group 3
Pin Definitions and Functions
Pin No. Symbol Function
1 Osc. output 1 VHF I/ VHF II/ UHF-osc. signal output to PLL,
symmetrical to pin 2
2 Osc. output 2 VHF I/ VHF II/ UHF-osc. signal output to PLL,
symmetrical to pin 1
3 GND Ground
4 VHF I-input 1 VHF I-mixer input high-impedance, symmetrical to pin 5
5 VHF I-input 2 VHF I-mixer input high-impedance, symmetrical to pin 4
6 VHF II-input 1 VHF II-mixer input low-impedance, symmetrical to pin 7
7 VHF II-input 2 VHF II-mixer input low-impedance, symmetrical to pin 6
8 UHF-input 1 UHF-mixer input low-impedance, symmetrical to pin 9
9 UHF-input 2 UHF-mixer input low-impedance, symmetrical to pin 8
10 + VSSupply voltage
11 SAW-filter driv.
out 1 SAW-filter driver output, low impedance,
symmetrical to pin 12
12 SAW-filter driv.
out 2 SAW-filter driver output, low impedance,
symmetrical to pin 11
13 Band switch VHF I/ VHF II/ UHF-band switch
14 UHF-osc.
input B1 UHF-osc. amplifier, high-impedance base input,
symmetrical to pin 17
15 UHF-osc.
output C2 UHF-osc. amplifier, high-impedance coll. output,
symmetrical to pin 16
16 UHF-osc.
output C1 UHF-osc. amplifier, high-impedance coll. output,
symmetrical to pin 15
17 UHF-osc.
input B2 UHF-osc. amplifier, high-impedance base input,
symmetrical to pin 14
18 VHF II-osc.
input B1 VHF II-osc. amplifier, high-impedance base input,
symmetrical to pin 21
Semiconductor Group 4
TUA 2019-5X
19 VHF II-osc.
output C2 VHF II-osc. amplifier, high-impedance collector output,
symmetrical to pin 20
20 VHF II-osc.
output C1 VHF II-osc. amplifier, high-impedance collector output,
symmetrical to pin 19
21 VHF II-osc.
input B2 VHF II-osc. amplifier, high-impedance base input,
symmetrical to pin 18
22 VHF I-osc.
coupling 1 VHF I-osc. coupling, collector output
23 GND Ground
24 VHF I-osc.
coupling 2 VHF I-osc. coupling, base input
Pin Definitions and Functions (cont’d)
Pin No. Symbol Function
TUA 2019-5X
Semiconductor Group 5
Block Diagram
Semiconductor Group 6
TUA 2019-5X
Absolute Maximum Ratings
TA= 0 to 70 °C
Parameter Symbol Limit Values Unit
min. max.
Supply voltage VSV10/3, 23 –0.3 14 V
Current I10 60 mA
Switching voltage V13 –0.3 + VSV
According to application circuit 1, only the provided circuitry can be connected to pins
1, 2, 4, 5, 6, 7, 8, 9, 11, 12, 14, 15, 16, 17, 18, 19, 20, 21, 22, 24
Junction temperature Tj150 °C
Storage temperature Tstg –40 125 °C
Thermal resistance Rth SA 75 K/W
Operating Range
Supply voltage VS10 13.2 V
Supply current I10 23 53 mA
VHF I-mixer input frequency range fVHF I 30 500 MHz
VHF II-mixer input frequency range fVHF II 30 900 MHz
UHF-mixer input frequency range fUHF 30 900 MHz
VHF I-oscillator frequency range fOVHF I 30 500 MHz
VHF II-oscillator frequency range fOVHF II 30 900 MHz
UHF-oscillator frequency range fOUHF 30 900 MHz
Ambient temperature TA070°C
TUA 2019-5X
Semiconductor Group 7
Characteristics
TA=25°C; VS=12V
Parameter Symbol Limit Values Unit Test Condition Test
Circuit
min. typ. max.
Current consumption
Current consumption I10
I10
30
27 38
34 45
41 mA
mA V13 > 1.6 V
V13 < 0.9 V 1
1
VHF I-Circuit Section
Switching voltage V13 01V 1
Switching current I13 10 µAV13 = 0.5 V 1
Oscillator frequency
range fVHF I 80 216 MHz Vd=0…28V 1
Oscillator drift
Oscillator drift
Oscillator drift
∆fVHF I
∆fVHF I
∆fVHF I
200
400
200
kHz
kHz
kHz
VS=12V±10 %
∆T=25°C
t= 5 s up to 15 min.
after switching on
1
1
1
Oscillator level
Oscillator level VK
VK
700
700 mVrms
mVrms channel E2, at hot end
channel S10, at hot end 1
1
Oscillator level
Oscillator level aPLL
aPLL
–20
–20 dBm
dBm channel E2
channel S10 1
1
Oscillator output
impedance R1, 2
C1, 2
100
2Ω
pF parallel equivalent circuit
parallel equivalent circuit 3
3
Harmonic wave ratio
interference level a1, 2 –10 dB V
HF = 1 Vrms 1
Oscillator pulling
Oscillator pulling
Oscillator pulling
Oscillator pulling
V4, 5
V4, 5
V4, 5
V4, 5
100
100
80
80
108
108
88
88
dB/µV
dB/µV
dB/µV
dB/µV
∆f= 10 kHz in channel E2
∆f= 10 kHz in channel S10
∆fint = E2 + (N + 5 – 1 MHz)
∆fint = S10 + (N + 5 – 1 MHz)
1
1
1
1
Gain
Gain
GVHF I
GVHF I
27
27
dB
dB
channel E2
pin 4, 5 > 11, 12
channel S10
pin 4, 5 > 11, 12
1
1
Mixer noise figure
Mixer noise figure NFVHF I
NFVHF I
7.5
7.5 9
9dB
dB channel E2 (DSB)
channel S10 (DSB) 2
2
Semiconductor Group 8
TUA 2019-5X
Interference voltage
Interference voltage Vint
Vint
70
70 dB/µV
dB/µV1 % cross mod.; E2 ±2
1 % cross mod.; S10 ±21
1
Mixer input
impedance R4, 5
C4, 5
3
0.5 kΩ
pF parallel equivalent circuit
parallel equivalent circuit 3
3
IF-suppression
IF-suppression aIF
aIF
20
20 dB
dB channel E2
channel S10 1
1
VHF II-Circuit Section
Switching voltage V13 1.6 2.3 V 1
Switching current I13 10 30 µAV13 = 2.1 V 1
Oscillator frequency
range fVHF II 190 485 MHz Vd=0…28V 1
Oscillator drift
Oscillator drift
Oscillator drift
∆fVHF II
∆fVHF II
∆fVHF II
400
500
200
kHz
kHz
kHz
VS=12V±10 %
∆T=25°C
t= 5 s up to 15 min.
after switching on
1
1
1
Oscillator level
Oscillator level aPLL
aPLL
–20
–20 dBm
dBm E5 balanced tested
S37 balanced tested 1
1
Oscillator output
impedance R1, 2
C1, 2
100
2Ω
pF parallel equivalent circuit
parallel equivalent circuit 3
3
Harmonic wave ratio
interference level a1, 2 –10 dB V
HF = 1 Vrms 1
Oscillator pulling
Oscillator pulling
Oscillator pulling
Oscillator pulling
V6, 7
V6, 7
V6, 7
V6, 7
100
100
80
80
108
108
88
88
dB/µV
dB/µV
dB/µV
dB/µV
∆f= 10 kHz in channel E5
∆f= 10 kHz in channel S37
∆fint = K5 + (N + 5 – 1 MHz)
∆fint = S37 + (N + 5 – 1 MHz)
1
1
1
1
Gain
Gain
GVHF II
GVHF II
41
41
dB
dB
channel E5
pin 6, 7 > 11, 12
channel S37
pin 6, 7 > 11, 12
1
1
Characteristics (cont’d)
TA=25°C; VS=12V
Parameter Symbol Limit Values Unit Test Condition Test
Circuit
min. typ. max.
TUA 2019-5X
Semiconductor Group 9
Mixer noise figure
Mixer noise figure NFVHF II
NFVHF II
7.5
7.5 9
9dB
dB channel E5 (DSB)
channel S37 (DSB) 2
2
Interference voltage
Interference voltage Vint
Vint
97
97 100
100 dB/µV
dB/µV1 % cross mod.; E5 ±2
1 % cross mod.; S37 ±21
1
Mixer input
impedance R6, 7
L6, 7
25
10 Ω
nH serial equivalent circuit
serial equivalent circuit 3
3
IF-suppression
IF-suppression aIF
aIF
20
20 dB
dB channel E5
channel S37 1
1
UHF-Circuit Section
Switching voltage V13 3.2 ≤VSV1
Switching current I13 60 300 µAV13 =VS1
Oscillator frequency
range fUHF 470 900 MHz Vd=0…28V 1
Oscillator drift
Oscillator drift
Oscillator drift
∆fUHF
∆fUHF
∆fUHF
400
800
600
kHz
kHz
kHz
VS=12V±10 %
∆T=25°C
t= 5 s up to 15 min.
after switching on
1
1
1
Oscillator level
Oscillator level V1, 2
V1, 2
–20
–20 dBm
dBm E21 balanced tested
E68 balanced tested 1
1
Oscillator output
impedance R1, 2
C1, 2
100
2Ω
pF parallel equivalent circuit
parallel equivalent circuit 3
3
Harmonic wave ratio
interference level a1, 2 –10 dB V
HF = 1 Vrms 1
Oscillator pulling
Oscillator pulling
Oscillator pulling
Oscillator pulling
V8, 9
V8, 9
V8, 9
V8, 9
100
100
80
80
108
108
88
88
dB/µV
dB/µV
dB/µV
dB/µV
∆f= 10 kHz in channel E21
∆f= 10 kHz in channel E68
∆fint = E21 + (N + 5 – 1 MHz)
∆fint = E68 + (N + 5 – 1 MHz)
1
1
1
1
Characteristics (cont’d)
TA=25°C; VS=12V
Parameter Symbol Limit Values Unit Test Condition Test
Circuit
min. typ. max.
Semiconductor Group 10
TUA 2019-5X
Gain
Gain
GUHF
GUHF
41
41
dB
dB
channel E21
pin 8, 9 > 11, 12
channel E68
pin 8, 9 > 11, 12
2
2
Mixer noise figure
Mixer noise figure NFUHF
NFUHF
8
910
11 dB
dB channel E21 (DSB)
channel E68 (DSB) 2
2
Interference voltage
Interference voltage Vint
Vint
97
97 100
100 dB/µV
dB/µV1 % cross mod.; E21 ±2
1 % cross mod.; E68 ±21
1
Mixer input
impedance R8, 9
L8, 9
25
10 Ω
nH serial equivalent circuit
serial equivalent circuit 3
3
IF-suppression aIF 20 dB channel E21 1
SAW-Filter Driver Section
SAW-filter driver
output impedance R11, 12
C11, 12
75
95 Ω
nH serial equivalent circuit
serial equivalent circuit 4
4
Output voltage
linearity VAOFW 24 dBm total harmonic distortion
factor THD =5%
Characteristics (cont’d)
TA=25°C; VS=12V
Parameter Symbol Limit Values Unit Test Condition Test
Circuit
min. typ. max.
TUA 2019-5X
Semiconductor Group 11
Test Circuit 1
Semiconductor Group 12
TUA 2019-5X
Test Circuit 2
TUA 2019-5X
Semiconductor Group 13
Test Circuit 3
Test Point Test Frequency in MHz Pin x Pin y
Oscillator output impedance 100 1 2
Mixer input impedance VHF 1 100 4 5
Mixer input impedance VHF 2 300 6 7
Mixer input impedance UHF 600 8 9
Measurement of the 4-pole matrix S11, S12, S21, S22 and
calculation of the π-equivalent circuit, which follows from that.
Semiconductor Group 14
TUA 2019-5X
Test Circuit 4
Measurement of the 4-pole matrix at 37 MHz S11, S12, S21, S22
and calculation of the π-equivalent circuit, which follows from that.
TUA 2019-5X
Semiconductor Group 15
Plastic Package, P-DSO-24-1 (SMD)
(Plastic Dual Small Outline)
GPS05144
Sorts of Packing
Package outlines for tubes, trays etc. are contained in our
Data Book “Package Information” Dimensions in mm
SMD = Surface Mounted Device
