U2510B Просмотр технического описания (PDF) - Atmel Corporation
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U2510B Datasheet PDF : 15 Pages
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Terminal Voltages
Test circuit: Vin = 0
Pin
1 Mute voltage (R3 = 0)
2 FM discriminator
3 Negative feedback
4 Volume control input (S4 = A)
5 AM oscillator
6 FM AFC
7 FM oscillator
8 VRef
9 FM RF tank
10 AM input
11 FM AGC
12 FM input
13 Front end ground
14 AM/FM IF output
15 Mode control switch
16 AM IF input
17 FM IF input
18 Treble control input (S5 = A)
19 LED
20 IF ground
21 AFC switch (S3 = off)
22 AGC (AM)/AFC (FM)
23 Detector output
24 AF input
25 Ripple filter
26 Supply voltage
27 AF output
28 AF ground
U2510B
Symbol
V1
V2
V3
V4
V5
V6
V7
V8
V9
V10
V11
V12
V13
V14
V15
V16
V17
V18
V19
V20
V21
V22
V23
V24
V25
V26
V27
V28
Voltage/V
VS = 3 V
VS = 6 V
AM FM TAPE AM FM TAPE
– 1.6 –
– 1.6 –
– 1.0 –
– 1.0 –
1.2 1.2 1.2 2.6 2.6 2.6
2.4 2.4 2.4 2.4 2.4 2.4
2.4 –
– 2.4 –
–
– 1.9 –
– 1.9 –
– 2.4 –
– 2.4 –
2.4 2.4 2.4 2.4 2.4 2.4
– 2.4 2.4 – 2.4 –
2.4 –
–
– 2.4 –
–
0
–
–
0
–
1.4 –
– 1.4 –
–
–
–
–
–
–
2.9 2.7 – 5.9 5.7 –
0
– 2.9 0
– 5.7
0
–
–
0
–
–
– 0.7 –
– 0.7 –
2.4 2.4 2.4 2.4 2.4 2.4
0
0
0
0
0
0
1.2 1.2 1.2 1.2 1.2 1.2
1.5 1.2 – 1.5 1.2 –
1.5 1.2 – 1.5 1.2 –
1.5 1.5 1.5 1.5 1.5 1.5
2.7 2.7 2.7 5.3 5.3 5.3
3.0 3.0 3.0 6.0 6.0 6.0
1.2 1.2 1.2 2.6 2.6 2.6
0
0
0
0
0
0
Rev. A3, 23-Feb-01
3 (15)
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