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Электронный компонент: MGCM01TP1N

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Obsolescence Notice






This product is obsolete.
This information is available for your
convenience only.

For more information on
Zarlink's obsolete products and
replacement product lists, please visit
http://products.zarlink.com/obsolete_products/
MGCM01
TDMA/AMPS Baseband Interface
DS2497 ISSUE 3.
3 December 2002
Ordering Information
MGCM01/KG/TP1N
The inputs for the receive path are I and Q signals at an IF
of 60kHz. The I and Q signals are filtered by a 60kHz
switched capacitor bandpass filter and are then
demodulated to give baseband I and Q signals. The
MGCM01 also provides voltage gain so that the baseband
outputs can be input directly to an A to D converter.
The internal FM discriminator can be used for demodulating
AMPS signals; the receive path also provides RSSI.
Transmit I and Q baseband signals from D to A converters
can be input directly to the MGCM01, which provides
reconstruction filters and a variable gain buffer.
The two PLL synthesisers are used for generation of the
receive and transmit IF LO signals.
Features
q
IS136 TDMA/AMPS Compatible
q
Channel Filtering (30kHz)
q
FM Demodulator
q
RSSI Output
q
Dual IF Synthesisers
q
Flexible Power Control
q
Fully Programmable via Serial Bus
q
3 Volt operation
q
48-pin TQFP package
Applications
q
Dual Mode TDMA/AMPS Mobile Telephones
q
Dual Band (PCS1900/900) TDMA/AMPS
Mobile Telephones
q
PCS 1900 TDMA Mobile Telephones
Description
The MGCM01 provides channel filtering for IS136 TDMA/
AMPS mobile telephones.
Figure 1 - MGCM01 block diagram
90
FM
DISCRIMINATOR
RSSI
S
60kHz
ATTENUATOR
ATTENUATOR
RXQ OP
1
/
2
AUDIO FB
AUDIO
RSSI FB
RSSI
RXI OP
1
/
2
RECEIVE SECTION
TX FM
TXI OP
1
/
2
TXQ OP
1
/
2
TXI IP
1
/
2
TXQ IP
1
/
2
RXI IP
1
/
2
RXQ IP
1
/
2
TRANSMIT
SECTION
RX PD
LOCK DET
TX PD
RX
TX
RX VCO
TX VCO
SCLK
SDAT
SLATCH
RESET
PCA
CONTROL
SYNTHESISERS
13/14
15/16
43
39
44
46
45
33/32
36/35
20
22
26/27
2/1
10
4/3
9
11
7
28
29/30
18
24
LOCK
SELECT
38
UHF LOCK
25
2
MGCM01
PIN 48
GND
RSSI FB
AUDIO FB
AUDIO
GND
RSSI
V
DD
GND
RXI OP
1
RXI OP
2
RXQ OP
1
RXQ OP
2
RXI IP
1
RXI IP
2
RXQ IP
1
RXQ IP
2
V
DD
RX PD
GND
RX VCO
GND
TX VCO
V
DD
TX PD
UHF LOCK
TXQ OP
1
TXQ OP
2
TX FM
TXI OP
1
TXI OP
2
V
DD
TXI IP
2
TXI IP
1
GND
TXQ IP
2
TXQ IP
1
PIN 1
RTUNE
VBG
RESET
PCA
SLATCH
SCLK
GND
VDD
TCXO
SDAT
LOCKDET
GND
MGCM01
TP48
Figure 2 - Pin connections - top view
Name
RXQ OP
-
RXQ OP
+
RXI OP
-
RXI OP
+
GND
V
DD
RSSI
GND
AUDIO
AUDIO FB
RSSI FB
GND
RXI IP
+
RXI IP
-
RXQ IP
+
RXQ IP
-
V
DD
RX PD
GND
RX VCO
GND
TX VCO
V
DD
TX PD
Type
O
O
O
O
GND
PWR
O
GND
O
I
I
GND
I
I
I
I
PWR
O
GND
I
GND
I
PWR
O
Description
Baseband receive Q output
-
Baseband receive Q output
+
Baseband receive I output
-
Baseband receive I output
+
Ground (substrate connection)
Power - RSSI/demodulator
RSSI output
Ground - RSSI/demodulator
Demodulator audio/data output
Demodulator feedback
RSSI feedback
Ground - receive section
Receive I Input
+
Receive I Input
-
Receive Q Input
+
Receive Q Input
-
Power - receive section
Rx PLL charge pump output
Ground (substrate connection)
Receive IF PLL input
Ground - synthesiser
Transmit IF PLL input
Power - synthesiser
Tx PLL charge pump output
Pin
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
Name
UHF LOCK
TXQ OP
+
TXQ OP
-
TX FM
TXI OP
+
TXI OP
-
V
DD
TXI IP
-
TXI IP
+
GND
TXQ IP
-
TXQ IP
+
GND
LOCK DET
SDAT
TCXO
V
DD
GND
SCLK
SLATCH
PCA
RESET
V
BG
RTUNE
Type
I
O
O
O
O
O
PWR
I
I
GND
I
I
GND
O
I
I
PWR
GND
I
I
I
I
O
I
Description
UHF synthesiser lock input
Transmit Q output
+
Transmit Q output
-
Transmit FM output
Transmit I output
+
Transmit I output
-
Power - transmit section
Transmit I input
-
Transmit I input
+
Ground TX channel
Transmit Q input
-
Transmit Q input
+
Ground (substrate connection)
Synthesiser lock detect output
Serial interface, serial data in
1944MHz reference from TCXO
Power supply - digital
Ground - digital
Serial interface clock
Serial interface latch
Power control assert
Chip master reset (active low)
Bandgap reference decoupling
Bias Ref. - connect 100k
to GND
Table 1 Pin descriptions
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
Absolute Maximum Ratings
Supply voltage (V
DD
)
Voltage applied to any pin
Operating temperature
-03V to +39V
-03V to V
DD
+03V
-30
C to
+100
C
Storage temperature
Max. junction temperature
ESD (Human Body Model)
-55
C to +150
C
+150
C
2kV
3
MGCM01
Electrical Characteristics
T
AMB
= -30
C to +85
C, V
DD
= 3V 10%, V
EE
= 0V. These characteristics are guaranteed by either production test
or design. They apply within the specified ambient temperature and supply voltage ranges unless otherwise stated.
Characteristic
Conditions
Min.
Value
Typ.
08V
DD
06V
DD
20
20
50
20
50
100
10
10
05
20
550
10
9
52
28
1944
Supply Current
Sleep
Power down
Receive section (I/Q)
Receive section (FM)
Receive section (I/Q)
Receive section (FM)
Transmit section (I/Q)
Transmit section (FM)
Logic Inputs
Input voltage high, V
IH
Input voltage low, V
IL
Input current
Input capacitance
Logic Outputs
Output voltage low, V
OL
Output voltage high, V
OH
Output current
Serial Control Timing
SDATA set up time, t
1
SDATA hold time, t
2
SCLK pulse width t
3
SLATCH set up time, t
4
SLATCH pulse width, t
5
SCLK period, t
6
Switch on/off times
TX turn on/turn off time
RX turn on/turn off time
TCXO Input
Input resistance
Input capacitance
Input sensitivity
Frequency
Max.
100
125
12
14
14
8
55
02V
DD
10
10
04
1
05
10
2
Units
A
A
mA
mA
mA
mA
mA
mA
V
V
nA
pF
V
V
mA
ns
ns
ns
ns
ns
ns
ms
ms
k
pF
Vp-p
MHz
Reference circuits active
At 25
C and V
DD
= 30V
At 25
C and V
DD
= 30V
V
IN
= 0V to V
DD
See Figure 3
AC coupled
Figure 3 - Serial bus timing diagram
t
3
t
1
t
2
t
6
t
5
t
4
SLCK
SDATA
SLATCH
BIT 23
BIT 22
BIT 21
BIT 0
cont...
4
MGCM01
Electrical Characteristics (continued)
Characteristic
Conditions
Min.
Value
Typ.
V
DD
-16
125
13
065
54
-05
3
30
16
67
61
48
18
18
48
61
68
71
36
71
61
40
25
40
61
36
61
10
2
V
DD
/2
V
DD
-14
10
053
56
TBD
05
14
15
10
60
69
63
51
20
20
50
63
70
73
48
73
28
48
10
Max.
V
DD
-12
585
05
TBD
2
16
22
17
22
-4 0
500
1 8
15
Units
k
k
V
V
mV
mV
V
mV
dB
dB
deg
%
s p-p
dB p-p
V
V p-p
mV
dB
V
mV
kHz
kHz
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
dB
Differential
Differential
Input normally AC coupled
Note 2
Note 2
Note 3
Differential (gain = 56dB)
See Table 6
0 to 125kHz
0 to 125kHz
10Hz to 100kHz referred to input
Differential
60kHz
Output SINAD = 12dB
Defined by external components
Note 4
Figure 5
Relative to signal at 60kHz
Note 5
Note 5
Figure 6
Receive - General
Input impedance
Output impedance
Input voltage RXI, RXQ
Output voltage RXI, RXQ
Out of band 60kHz 1dB
compression
Out of Band 120 kHz 1dB
compression
Input IP3
Receive (I/Q Mode)
Input signal
Gain
I/Q gain matching
I/Q quadrature accuracy
l/Q bandwidth Matching
Group delay ripple
Gain ripple
Noise
Output 1dB compression
LO breakthrough
Other spurious signals
Receive (FM Mode)
Input signal
Audio output
Receive Filter (Bandpass)
Centre frequency
3dB bandwidth
Stop band attenuation
0 to 3kHz
3 kHz to 10kHz
10 kHz to 22kHz
38kHz
82kHz
98kHz to 110kHz
110kHz to 117kHz
117kHz to 123kHz
123kHz to 136MHz
136MHz to 152MHz
152MHz to 10MHz
Image attenuation
0 to
-10kHz
-10kHz to -42kHz
-42kHz to -78kHz
-78kHz to -105kHz
-105kHz to -136MHz
-136MHz to -152MHz
-152M Hz to -10MHz
Gain Ripple
cont...