Motorola MC34216ADW Datasheet
T
A
= 0° to +70°C
Device
Operating
Temperature Range
Package
SEMICONDUCTOR
TECHNICAL DATA
PROGRAMMABLE
TELEPHONE LINE
INTERFACE CIRCUIT WITH
LOUDSPEAKER AMPLIFIER
ORDERING INFORMATION
MC34216ADW SO–28L
DW, DWF SUFFIX
PLASTIC PACKAGE
CASE 751F
28
1
PIN CONNECTIONS
Order this document by MC34216A/D
1 28
27
26
25
24
23
22
21
2
3
4
5
6
7
8
AHO1
AHO2
MTF
MTC
Mic
AGC
RXO1
LPI
Gnd
V
CC
20
9
LAO
LAI
I
ref
1910
HYN
R
S
LPO
RXI
RXO2
AGnd
TXI
(Top View)
18
11
NDC
Clk
17
12
CM D/HS
16
13
IMP
Osc
15
14
SAO SAI
MC34216ADWF SO–28L
1
MOTOROLA ANALOG IC DEVICE DATA
!
The MC34216A is developed for use in telephone applications where,
besides the standard telephone functions, the group listening–in feature is
also required. In cooperation with a microcontroller, the circuit performs all
basic telephone functions including DTMF generation and pulse–dialing.
The listening–in part includes a loudspeaker amplifier, an anti–howling
circuit and a strong supply. In combination with the TCA3385, the ringing is
performed via the loudspeaker.
• Programmable DC Mask, for France, U.K., and Voltage Regulated
Countries
• DC Mask for France and U.K. (MC34216ADWF)
• Programmable Volume for Listening–In and Ringing
• Small Amount of External Components
• On–Chip DTMF and Ring Signal Generator
• Efficient Supply Point for Loudspeaker Amplifier and Peripherals
• Programmable Modes for Speakerphone, Answering Machine, Fax and
Modem Applications
• Pilot and Idle Tones Provide Extra Phone Features
Simplified Block Diagram
This device contains 6,507 active transistors.
Line
Driver
Anti–
Howling
Mic
Supply
Stabilizer
DC Mask
Generation AC
Termination 2–4
Wire Conversion
DC and AC
Termination
Handset
Earpiece
Handset
MIcrophone
Line –
Line +
LSP
Base
Loudspeaker
Micro-
controller
Interface
DTMF and
Ring
Generator
Ear
This document contains information on a new product. Specifications and information
herein are subject to change without notice.
Motorola, Inc. 1996
MC34216A
2
MOTOROLA ANALOG IC DEVICE DATA
FEATURES
Line Driver and Supply
• DC and AC Termination of the Line
• Programmable DC Mask: France, U.K., Startup, Low Voltage (MC34216ADW)
• Programmable DC Mask: France, U.K., Startup (MC34216ADWF)
• Current Protection
• Adjustable Set Impedance for Resistive and Complex Termination
• Efficient Supply Point for Loudspeaker Amplifier and Peripherals
Handset Operation
• Transmit and Receive Amplifiers
• Adjustable Sidetone Network
• Line Length AGC
• Microphone and Earpiece Mute
• Earpiece Gain Increase Switch
• Microphone Squelch Function
• Transmit Amplifier Soft Clipping
Dialing and Ringing
• Generates DTMF, Pilot Tones and Ring Signal
• Interrupter Driver for Pulse–Dialing
• Low Current While Pulse–Dialing
• Optimized for Ringing via Loudspeaker
• Programmable Ring Melodies
• Uses Inexpensive 500 kHz Resonator
Loudspeaking Facility
• Integrated Loudspeaker Amplifier
• Peak–to–Peak Limiter Prevents Distortion
• Programmable Volume
• Anti–Howling Circuitry for Group Listening–In
• Interfacing for Handsfree Conversation
Application Areas
• Corded Telephony with Group Listening–In
• Cordless Telephony Base Station with Group Listening–In
• Telephones with Answering Machines
• Fax, Intercom, Modem
MAXIMUM RATINGS
Rating Symbol Min Max Unit
Maximum Junction Temperature T
J
– +150 °C
Storage Temperature Range T
stg
– 65 +150 °C
NOTES: 1. Devices should not be operated at or outside these values. The “Recommended
Operating Limits” provide for actual device operation.
2.ESD data available upon request.
RECOMMENDED OPERATING CONDITIONS
Characteristic Symbol Min Typ Max Unit
Oscillator Frequency @ Pin 16
f
osc
495
500
505
ÁÁÁ
ÁÁÁ
ÁÁÁ
kHz
Operating Temperature Range
T
A
0
–
+70
ÁÁÁ
ÁÁÁ
ÁÁÁ
°C
MC34216A
3
MOTOROLA ANALOG IC DEVICE DATA
DC ELECTRICAL CHARACTERISTICS (T
A
= 25°C)
Characteristic
Symbol Min Typ Max Unit
VOLTAGE REGULATOR
Regulated Supply at Pin 21
Vdc
Startup Mode
ICC = 10 mA V
CC1
4.25 4.50 4.75
ICC = 100 mA 4.40 4.65 4.90
France and U.K.
ICC = 10 mA V
CC2
4.25 4.50 4.75
ICC = 50 mA 4.30 4.55 4.85
Low Voltage Mode (MC34216ADW Only)
ICC = 10 mA V
CC3
3.60 3.90 4.20
ICC = 100 mA 3.75 4.05 4.35
Current Consumption at Pin 21, Bit LD = Hi
ICC LD
–
1.2
–
mA
Regulated Supply in Protection Mode, ICC = 30 mA
V
CC5
4.30
–
4.80
Vdc
Reference Current @ Pin 20
I
ref
15.3
16.3
17.3
µA
LOGIC PINS
Hook Status Output (Pin 17)
Vdc
Off–Hook, I
out
= – 200 µA V
HSO1
VCC – 1.0 – –
On–Hook, I
out
= 200 µA V
HSO2
– – 0.4
Bit LD = 1, I
out
= – 200 µA V
HSO3
VCC – 1.0 – –
Reset Output (Pin 19)
Vdc
VCC < 3.0 V V
res(on)
– – 0.40
VCC > 3.25 V V
res(off)
3.0 – VCC – 0.1
Hysteresis V
res(hys)
– 0.05 –
SPEECH AMPLIFIERS
Earpiece Amplifier DC Bias
Vdc
RXI, Pin 25 V
RXI
1.7 – 2.3
RXO1, Pin 26 V
RXO1
1.7 – 2.5
RXO2, Pin 27 V
RXO2
1.7 – 2.5
RXO1 – RXO2 Offset V
offset
– – 0.4
Loudspeaker Amplifier
Vdc
LPI, Pin 24 V
LPI
1.9 – 2.5
LPO, Pin 23 V
LPO
1.9 – 2.5
AHO1 (Pin 1)
Vdc
Normal Mode (HPI = 0) V
AHO11
1.15 – 1.65
Supervision Mode (HPI = 1) V
AHO12
2.2 – 2.8
AHO2 (Pin 2)
Vdc
Normal Mode (MicM = 1)
V
AHO21
1.15 – 1.65
VCC = 3.5 (MicM = 0) V
AHO22
– – 0.20
Bias Voltage at HYN (Pin 10)
Vdc
Normal Mode V
HYN
2.4 – 2.7
Bit (LD = 1) V
HYN–LD
1.4 – 1.7
Microphone Amplifier
Bias Voltage @ TXI (Pin 6) V
TXI
1.7 – 2.0 Vdc
Voltage at MIC @ 1.0 mA ( MicP = 1) V
Mic
– – 0.35
Leakage @ MIC @ 4.5 V (MicP = 0) I
leak
– – 5.5 µA
LAO (Pin 8)
Maximum Current (Source) I8 – –150 –110 µA
Maximum Current (Sink) I8 110 150 –
Voltage (LD = 1, I = 100 µA) V
LAO
– – 350 mV
Driver A8 Slope S8 1.6 2.1 2.6 µA/mV
VO1 Follower (I2 = 0 µA)
V
O1
1.1
1.18
1.3
V
VO1 – V
O2
∆V
O
40 80 120 mV
Voltage at IMP (Pin 13)
V
IMP
2.2
–
2.5
Vdc
MC34216A
4
MOTOROLA ANALOG IC DEVICE DATA
DC ELECTRICAL CHARACTERISTICS
(continued) (TA = 25°C)
Characteristic UnitMaxTypMinSymbol
DC MASK CHARACTERISTICS
Startup Mode
Internal Slope ri 300 380 460 mV/µA
Voltage on SAI (I2C = 5.9 µA) V
C
800 – – mV
Voltage on SAI (I2D = 7.1 µA) V
D
– – 1.5 V
Delta Offset Voltage on SAI (I2E = 38 µA) VE – V
D
– – 100 mV
French
Internal Slope ri 76 103 130 mV/µA
Voltage on SAI (I2C = 5.9 µA) V
C
280 – – mV
Voltage on SAI (I2D = 7.1 µA) V
D
– – 460
Delta Offset Voltage on SAI (I2E = 38 µA) VE – V
D
– – 30
U.K.
Internal Slope ri 120 165 210 mV/µA
Voltage on SAI (I2C = 5.9 µA) V
C
420 – – mV
Voltage on SAI (I2D = 7.1 µA) V
D
– – 675
Delta Offset Voltage on SAI (I2E = 38 µA) VE – V
D
– – 40
Low Voltage Mode (MC34216ADW Only)
Internal Slope ri 95 129 165 mV/µA
Voltage on SAI (I2C = 15 µA) V
C
900 – – mV
Voltage on SAI (I2D = 17 µA) V
D
– – 1.5 Vdc
Delta Offset Voltage on SAI (I2E = 20 µA) VE – V
D
– – 100 mV
Overvoltage Protection Threshold (V
LAI
– V
SAO
)
V
clamp1
485
550
615
mV
I
prot
= 60 µA, ICC = 70 mA
Protection Voltage Level (V
LAI
– V
SAO
)
V
clamp2
370
410
450
mV
I
prot
= 60 µA
AC ELECTRICAL CHARACTERISTICS (T
A
= 25°C)
Characteristic
Symbol Min Typ Max Unit
TRANSMIT MODE
French and U.K.
dB
Maximum Transmit Gain (I2 = 5.6 µA) K
µ0
13.5 14.5 15.5
Line Length Regulation (I2 = 27.5 µA) ∆K
µ
5.0 6.0 7.0
Gain in Protection Mode (I2 = 29.5 µA) K
µp
13.5 14.5 15.5
Low Voltage Mode (MC34216ADW Only)
dB
Maximum Transmit Gain (I2 = 3.5 µA) K
µ0
13.5 14.5 15.5
Line Length Regulation (I2 = 7.7 µA) ∆K
µ
4.7 6.0 7.3
Gain in Protection Mode (I2 = 7.7 µA) K
µp
13.5 14.5 15.5
Gain Reduction when Microphone is Muted
∆K
mute
60
–
–
dB
RECEIVE MODE
French
Maximum Internal Transconductance (I2 = 5.6 µA) G
e0
203 230 258 µA/V
Line Length Regulation (I2 = 26 µA) ∆G
e
5.0 6.0 7.0 dB
Protection Mode (I2 = 26 µA) G
ep
203 230 258 µA/V
U.K.
Maximum Internal Transconductance (I2 = 5.6 µA) G
e0
203 230 258 µA/V
Line Length Regulation (I2 = 26 µA) ∆G
e
5.0 6.0 7.0 dB
Protection Mode (I2 = 26 µA) G
ep
203 230 258 µA/V
Low Voltage Mode (MC34216ADW Only)
Maximum Internal Transconductance (I2 = 3.5 µA) G
e0
183 210 241 µA/V
Line Length Regulation (I2 = 7.9 µA) ∆G
e
4.7 6.0 7.3 dB
Protection Mode (I2 = 7.9 µA) G
ep
183 210 241 µA/V
Earpiece Gain Reduction when Muted
∆Ge
mute
60
–
–
dB
Earpiece Gain Variation (EA Bit Changed to 1)
∆G
e1
4.6
5.6
6.6
dB
MC34216A
5
MOTOROLA ANALOG IC DEVICE DATA
AC ELECTRICAL CHARACTERISTICS (continued) (T
A
= 25°C)
Characteristic UnitMaxTypMinSymbol
TRANSMIT PABX MODE
French and U.K.
dB
Transmit Gain (I2 = 2.0 µA) K
PABX
11.4 12.5 13.6
Variation with Line Length (I2 = 27 µA) ∆K
PABX
–0.5 – 0.5
Low Voltage Mode (MC34216ADW Only)
dB
Transmit Gain (I2 = 2.0 µA) K
PABX
11.5 12.5 13.6
Variation with Line Length (I2 = 20 µA) ∆K
PABX
–0.5 – 0.5
Variation with Line Current (ICC = 16 mA) ∆K
PABX1
–0.5 0 0.5
Variation with Line Current (ICC = 7.0 mA) ∆K
PABX2
–2.0 0 2.0
RECEIVE PABX MODE
French
Internal Transconductance (I2 = 2.0 µA) G
PABX
157 180 207 µA/V
Variation with Line Length (I2 = 27 µA) ∆G
PABX
–0.5 – 0.5 dB
U.K.
Internal Transconductance (I2 = 2.0 µA) G
PABX
157 180 207 µA/V
Variation with Line Length (I2 = 27 µA) ∆G
PABX
–0.5 – 0.5 dB
Low Voltage Mode (MC34216ADW Only)
Internal Transconductance (I2 = 2.0 µA) G
PABX
152 175 200 µA/V
Variation with Line Length (I2 = 20 µA) ∆G
PABX
–0.5 – 0.5 dB
Variation with Line Current (ICC = 16 mA) ∆G
PABX1
–0.5 – 0.5
Variation with Line Current (ICC = 7.0 mA) ∆G
PABX2
–2.0 – 2.0
DISTORTION
French and U.K. Transmit (I2 = 10–30 µA)
French Receive VE = 700 mV
(I2 = 10 µA) VE = 1350 mV
THDT
THDR
–
–
–
–
–
–
3.0
3.0
5.0
%
Low Voltage Transmit (I2 = 10–20 µA)
(MC34216ADW Only) Receive VE = 700 mV
(I2 = 20 µA) VE = 1350 mV
THDT
THDR
–
–
–
–
–
–
3.0
3.0
5.0
%
NOTE: VE is the differential earpiece voltage across Pins 26 and 27.
OTHER ELECTRICAL CHARACTERISTICS (T
A
= 25°C)
Characteristic
Symbol Min Typ Max Unit
LINE CURRENT AGC ( RLS = 25 Ω, G0 = G1 = G2 = 1, VLS = 2.0 Vpp, French, U.K., and LV Masks)
Line Current for which AGC is Active
I
AGC(on)
–
–
19
mA
VCC with Current AGC “On” (ICC = 13 mA)
VCC
AGCVCC
– 5.0%
V
CC
–
Vdc
Line Current for which AGC is Inactive
I
AGC(off)
21
–
–
mA
PEAK–TO–PEAK AGC (RLS = 25 Ω, C25 = 220 nF, G0 = G1 = G2 = 1, ICC = 40 mA)
DC Level at Pin 28
Vdc
AGC “Off” V
AGC(off)
1.6 1.7 1.8
AGC “On” V
AGC(on)
1.2 1.3 1.5
AGC Upper Threshold
V
LS(up)
V
rms
France and U.K. VCC – 1.2 VCC – 1.0 –
Low Voltage (MC34216ADW Only) 0.85 1.0 –
AGC Lower Threshold
V
LS(low)
V
rms
France and U.K. VCC – 1.9 VCC – 1.6 –
Low Voltage (MC34216ADW Only) 0.72 0.85 –
1 Step AGC Gain Variation (LSB)
∆AGC
1.0
1.25
1.50
dB
ANTI–HOWLING MONITORING RECEIVE GAIN
Internal Resistor R
T
Muted (G2, G1, G0 = 000) R
T000
– 10 18 Ω
Maximum Gain (G2, G1, G0 = 111) R
T111
40 60 80 kΩ
Attenuation Step
∆G
LS
3.5
4.5
5.5
dB
MC34216A
6
MOTOROLA ANALOG IC DEVICE DATA
OTHER ELECTRICAL CHARACTERISTICS
(continued) (TA = 25°C)
Characteristic UnitMaxTypMinSymbol
RINGING MODE REGULATION
Regulated VCC (RLS = ∞, ICC = 10 mA)
VCCR
5.15
5.5
5.8
Vdc
Current Consumption @ VCC = 3.4 V, RLS = ∞
IcR
–
2.0
2.6
mA
Ringing Regulator Slope
gR
4.8
6.3
7.8
µA/V
Peak Current @ VCC = 4.2 V
IR Peak
2.0
2.5
3.0
µA
Minimum V
CC
V
CC0
–
3.8
–
Vdc
MICROPHONE THRESHOLD
Transmit Gain Variation (M
th(on)/Mth(off)
)
dB
Iu = 33 nA ∆K
µmth1
– 7.0 –
Iu = 110 nA ∆K
µmth2
–0.5 0 0.5
LS Gain Variation (M
th(on)/Mth(off)
)
dB
Iu = 33 nA ∆G
LSmth1
–0.5 0 0.5
Iu = 110 nA ∆G
LSmth2
– 7.0 –
SPEAKERPHONE MODE (G2, G1, G0 = 111, Sp Bit = 1)
DC Level on Pin 1
V
AHO1
2.2
–
2.8
Vdc
Speakerphone Gain
G
sp
30
32
34
dB
MONITORING SIGNAL IN LOUDSPEAKER (R/S = 0, G2, G1, G0 = 111)
DTMF Level
mV
SP = 0
Low Frequency V
LS–L1
– 200 –
High Frequency V
LS–H1
– 250 –
SP = 1
Low Frequency V
LS–L2
– 700 –
High Frequency V
LS–H2
– 900 –
Pilot Tone (PT = 1)
mV
SP = 0 V
LS–P1
– 185 –
SP = 1 V
LS–P2
– 560 –
Idle Tone (IT = 1)
mV
SP = 0 V
LS–I1
– 145 –
SP = 1 V
LS–I2
– 700 –
Ring Tone (RT = 1)
mV
SP = 0 V
LS–R1
– 1100 –
SP = 1 V
LS–R2
– 1400 –
MONITORING SIGNAL IN EARPIECE (Single Ended)
DTMF Level
mV
Low Frequency V
RXO–L
– 12 –
High Frequency V
RXO–H
– 15 –
Pilot Tone (PT = 1)
V
RXO–P
–
8.0
–
mV
Idle Tone (IT = 1)
V
RXO–I
–
6.0
–
mV
IDLE TONE ON LINE
Idle Tone Level (MFC01 = 11, MFO123 = 000)
I
IDLE0
400
550
700
nA
Step Size
I
IDLE(step)
–
62
–
nA
DTMF LEVELS
Level on LAI (Pin 9, ICC = 20 to 70 mA, French and U.K. Masks)
nA
MFO123 = 1111, High Frequency Group I
DTMF15
1124 1336 1586
MFO123 = 0111, High Frequency Group I
DTMF12
988 1175 1397
MFO123 = 0000, Low Frequency Group I
DTMF0
373 444 528
High/Low Frequency Pre–Emphasis
G
DTMF
1.0
2.0
3.0
dB
NOTE: In low voltage mode, above levels must be reduced by 0.5 dB.
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