TSA6060 Philips Semiconductors, TSA6060 Datasheet - Page 5

• Manufacturer Part Number: TSA6060
• Description: Fast radio tuning PLL frequency synthesizer
• Manufacturer: Philips Semiconductors

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Philips Semiconductors
The bit organization of the 4 data bytes is shown in Fig.3. Further information is given in Tables 2, 3, 4 and 5.
The bits S0 to S16 (DB0: D7 to D1; DB1: D7 to D0; DB2: D1 to D0) together with bit FM/AM (DB2: D5) are used to set
the divider of the input frequency at inputs AM
shown in Table 1.
Table 1 System-in-lock (note 1).
Note
1. The minimum dividing ratio for the AM mode is 2
Table 2 Bit CP is used to control the charge pump
Table 3 Bits REF1 and REF2 are used to set the
Table 4 Bit FM/AM OPAMP controls the switch AM/FM,
1995 Nov 23
OPERATIONAL
Fast radio tuning PLL frequency
synthesizer
AMPLIFIER
FM/AM
FM/AM
REF1
CP
0
0
1
1
0
1
0
1
1
0
current (DB0: D0).
reference frequency applied to the phase
detector (DB2: D7 to D6).
FM/AM in the tuning voltage amplifier circuits
(DB2: D4).
REF2
FM/AM
closed
0
1
0
1
open
CURRENT
SWITCH
(S2
(S0
HIGH
LOW
FREQUENCY (kHZ)
REFERENCE
2
2
0
0
+ S3
+ S1
AM/FM
closed
10
25
50
open
1
I
(pin 7) or FM
INPUT FREQUENCY (f
2
2
1
1
6
..... + S15
..... + S15
= 64 and for the FM mode is 2
5
I
Table 5 Bit BS controls the open-collector band switch
The bit 8/4 MHz controls a divide-by-1/divide-by-2 divider
cell in the reference oscillator section. This allows the use
of a 4 MHz or 8 MHz crystal.
Table 6 Test mode.
The data byte DB3 must be set to 0.....0. It is also used for
test purposes (see Fig.3)).
(pin 5). If the system is in-lock the following is valid, as
T3
0
1
0
1
0
1
1
2
2
13
15
+ S16
BS
+ S16
1
0
output (DB2: D2).
i
)
T2
X
0
1
1
0
1
0
2
2
16
14
)
)
T1
X
X
0
1
1
1
1
f
f
ref
8
ref
= 256.
BAND SWITCH OUTPUT
normal
CP source
CP sink
CP 3-state
CP sink + source
BS = main divider output
BS = reference divider output
sink current
floating
FUNCTION
Product specification
TSA6060
INPUT
AM
FM